CN110381545B

CN110381545B - Bandwidth allocation method and device, user equipment and base station

Info

Publication number: CN110381545B
Application number: CN201910637362.4A
Authority: CN
Inventors: 周永行; 孙静原; 大卫·马瑞泽; 薛丽霞; 任晓涛
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-03-28
Filing date: 2013-03-28
Publication date: 2021-10-01
Anticipated expiration: 2033-03-28
Also published as: CN110380838A; CN110392399A; EP2963970A1; US11064482B2; US11576175B2; CN110461014A; CN110336654B; US20230328699A1; EP2963970A4; CN110475293A; CN104685923A; US20210345326A1; CN110380838B; CN110381545A; CN110461014B; CN104685923B; CN110392399B; CN110336654A; CN110475293B; US20160014778A1

Abstract

The embodiment of the invention provides a bandwidth allocation method, a bandwidth allocation device, user equipment and a base station. The method comprises the following steps: the method comprises the steps that user equipment receives at least one piece of virtual bandwidth configuration information, wherein the virtual bandwidth configuration information is used for indicating the configuration of virtual bandwidth; and the user equipment receives and/or processes signals according to at least one virtual bandwidth in the virtual bandwidths indicated by the at least one piece of virtual bandwidth configuration information, wherein each virtual bandwidth is a part or all of a downlink maximum available bandwidth or a downlink transmission bandwidth, and the downlink maximum available bandwidth is the maximum bandwidth available for downlink transmission. The embodiment of the invention realizes the reduction of the overhead and the complexity of signal receiving and signal processing, and can flexibly control the overhead and the complexity of signal receiving and processing feedback.

Description

Bandwidth allocation method and device, user equipment and base station

Technical Field

The present invention relates to communications technologies, and in particular, to a bandwidth allocation method, an apparatus, a user equipment, and a base station.

Background

In a Long Term Evolution (Long Term Evolution, hereinafter referred to as LTE) system, each cell has a fixed downlink transmission bandwidth. A User Equipment (hereinafter, referred to as UE) obtains a downlink transmission bandwidth by receiving broadcast information, and then receives and/or processes a signal based on the downlink transmission bandwidth.

Currently, in the LTE system, for the UE, measurement and feedback are performed based on one bandwidth, for example, a downlink transmission bandwidth, thereby causing the problems of low overhead and complexity of signal reception and/or processing.

Disclosure of Invention

Embodiments of the present invention provide a bandwidth allocation method, an apparatus, user equipment, and a base station, so as to reduce overhead and signal reception and/or processing complexity, and flexibly control overhead and signal reception and/or processing feedback complexity.

In a first aspect, an embodiment of the present invention provides a bandwidth configuration method, including:

the method comprises the steps that User Equipment (UE) receives at least one piece of virtual bandwidth configuration information, wherein the virtual bandwidth configuration information is used for indicating the configuration of virtual bandwidth;

the UE receives and/or processes signals according to at least one virtual bandwidth in the virtual bandwidth indicated by the at least one virtual bandwidth configuration information;

each of the virtual bandwidths is a downlink maximum available bandwidth or a part or all of a downlink transmission bandwidth, and the downlink maximum available bandwidth is a maximum bandwidth available for downlink transmission.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the performing, by the UE, signal reception and/or signal processing according to at least one virtual bandwidth in the virtual bandwidths indicated by the at least one virtual bandwidth configuration information includes:

and the UE receives or processes signals on each virtual bandwidth in all the virtual bandwidths corresponding to the at least one piece of virtual bandwidth configuration information.

With reference to the first aspect, in a second possible implementation manner of the first aspect, the UE receives at least two pieces of virtual bandwidth configuration information, and the method further includes:

and the UE receives first configuration information, wherein the first configuration information is used for indicating the UE to receive or process signals according to a virtual bandwidth corresponding to at least one piece of virtual bandwidth configuration information in the at least two pieces of virtual bandwidth configuration information.

With reference to the first or second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the method further includes:

and the UE receives second configuration information for signal receiving and/or signal processing on the virtual bandwidth, wherein the second configuration information is the configuration information of the signal or the signal processing.

With reference to the first aspect, in a fourth possible implementation manner of the first aspect, the virtual bandwidth configuration information is used to instruct the UE to perform at least one signal reception or signal processing on each virtual bandwidth in a virtual bandwidth corresponding to the at least one virtual bandwidth configuration information.

With reference to the first aspect and any one of the first to fourth possible implementation manners of the first aspect, in a fifth possible implementation manner of the first aspect, the signal receiving and/or signal processing includes at least one of the following signal receiving or signal processing:

receiving a channel state information reference signal (CSI-RS), receiving a cell specific reference signal (CRS), searching a Physical Downlink Control Channel (PDCCH), searching an Enhanced Physical Downlink Control Channel (EPDCCH), measuring Channel State Information (CSI), measuring Radio Resource Management (RRM), feeding back the CSI, receiving a Physical Downlink Shared Channel (PDSCH), receiving a physical hybrid automatic repeat request indicator channel (PHICH), receiving an enhanced physical hybrid automatic repeat request indicator channel (EPHICH), receiving a Physical Multicast Channel (PMCH) and receiving a common signal;

wherein the common signal reception comprises at least one of:

physical broadcast channel PBCH reception, enhanced physical broadcast channel ePBCH reception, primary synchronization signal PSS/secondary synchronization signal SSS reception, and discovery signal reception.

With reference to the first aspect, in a sixth possible implementation manner of the first aspect, the virtual bandwidth configuration information includes at least one of size, location information, type, and downlink transmission power information of the virtual bandwidth.

With reference to the sixth possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect, the location information of the virtual bandwidth includes start location information of the virtual bandwidth or center frequency information of the virtual bandwidth, where the start location of the virtual bandwidth is a start location of any one resource block set in each resource block set divided according to a maximum downlink available bandwidth or a downlink transmission bandwidth.

With reference to the sixth possible implementation manner of the first aspect, in an eighth possible implementation manner of the first aspect, the size of the virtual bandwidth is equal to a sum of sizes of at least one resource block set in each resource block set divided according to the maximum downlink available bandwidth or the downlink transmission bandwidth, or

The size of the virtual bandwidth is predefined.

With reference to the sixth possible implementation manner of the first aspect, in a ninth possible implementation manner of the first aspect, the downlink transmission power information includes a transmission power of a cell-specific reference signal CRS or a simplified cell-specific reference signal RCRS.

With reference to the sixth possible implementation manner of the first aspect, in a tenth possible implementation manner of the first aspect, the type of the virtual bandwidth is at least one of a centralized virtual bandwidth, a discontinuous virtual bandwidth, and a distributed virtual bandwidth.

With reference to the sixth possible implementation manner of the first aspect, in an eleventh possible implementation manner of the first aspect, when the UE receives at least two pieces of virtual bandwidth configuration information, at least one of location information, size, type, and downlink transmission power information corresponding to virtual bandwidths indicated by any two pieces of virtual bandwidth configuration information in the at least two pieces of virtual bandwidth configuration information is different.

With reference to the first aspect, in a twelfth possible implementation manner of the first aspect, the receiving, by the UE, at least one piece of virtual bandwidth configuration information includes:

the UE receives at least one piece of virtual bandwidth configuration information carried in a broadcast message signaling or a multicast signaling or a UE-specific signaling.

With reference to the first aspect, in a thirteenth possible implementation manner of the first aspect, the virtual bandwidth configuration information includes information used to indicate whether a common signal and/or a common channel is transmitted on the virtual bandwidth, where the common signal includes at least one of a CRS, a cell-specific CSI-RS, a system information block, a primary synchronization signal, a secondary synchronization signal, and a discovery signal; the common channel includes at least one of a physical broadcast channel and a common control channel.

With reference to the first aspect and any one of the first to thirteenth possible implementation manners of the first aspect, in a fourteenth possible implementation manner of the first aspect, if the at least one piece of virtual bandwidth configuration information is virtual bandwidth configuration information corresponding to each CSI-RS in at least one CSI-RS, then the receiving, by the UE, a signal according to at least one virtual bandwidth in the virtual bandwidths indicated by the at least one piece of virtual bandwidth configuration information includes:

and the UE receives a corresponding CSI-RS according to the configured virtual bandwidth, wherein the CSI-RS is a non-zero power channel state information reference signal NZP CSI-RS or a zero power channel state information reference signal ZP CSI-RS.

With reference to the fourteenth possible implementation manner of the first aspect, in a fifteenth possible implementation manner of the first aspect, when the CSI-RS is an NZP CSI-RS, the sequence of the NZP CSI-RS is generated based on a preset formula according to a virtual bandwidth corresponding to the NZP CSI-RS; or

The NZP CSI-RS sequence is obtained by intercepting a sequence generated based on a preset formula according to downlink transmission bandwidth according to the position of a virtual bandwidth corresponding to the NZP CSI-RS in the downlink transmission bandwidth; or

The NZP CSI-RS sequence is obtained by intercepting the position of the virtual bandwidth of the NZP CSI-RS at the maximum downlink available bandwidth from a sequence generated on the basis of a preset formula according to the maximum downlink available bandwidth

With reference to the fourteenth possible implementation manner of the first aspect, in a sixteenth possible implementation manner of the first aspect, the performing, by the UE, signal processing according to the virtual bandwidth indicated by the virtual bandwidth configuration information includes:

and the UE carries out RRM measurement according to the virtual bandwidth of the CSI-RS.

With reference to the fourteenth possible implementation manner of the first aspect, in a seventeenth possible implementation manner of the first aspect, the method further includes:

and when the CSI-RS is the NZP CSI-RS, the UE receives the transmission power information corresponding to the NZP CSI-RS on the virtual bandwidth corresponding to the virtual bandwidth configuration information.

With reference to the first aspect and any one of the first to thirteenth possible implementation manners of the first aspect, in an eighteenth possible implementation manner of the first aspect, the receiving, by the UE, at least one piece of virtual bandwidth configuration information includes:

and the UE receives virtual bandwidth configuration information corresponding to each CSI-IM in at least one CSI-IM.

With reference to the first aspect and any one of the first to thirteenth possible implementation manners of the first aspect, in a nineteenth possible implementation manner of the first aspect, if the at least one piece of virtual bandwidth configuration information is virtual bandwidth configuration information corresponding to each CSI process in at least one CSI process, then the performing, by the UE, signal processing according to at least one piece of virtual bandwidth in the virtual bandwidth indicated by the at least one piece of virtual bandwidth configuration information includes:

and the UE performs measurement or measurement feedback of the CSI according to the virtual bandwidth configuration information corresponding to each CSI process.

With reference to the nineteenth possible implementation manner of the first aspect, in a twentieth possible implementation manner of the first aspect, the starting position of the virtual bandwidth is a starting position of any one of sub-bands divided according to a maximum downlink available bandwidth or a downlink transmission bandwidth; and/or

The size of the virtual bandwidth is equal to the sum of the sizes of at least one sub-band in each sub-band divided according to the downlink maximum available bandwidth or the downlink transmission bandwidth.

With reference to the nineteenth possible implementation manner of the first aspect, in a twenty-first possible implementation manner of the first aspect, the virtual bandwidth corresponding to the CSI process covers a range of a virtual bandwidth of the NZP CSI-RS and/or the CSI-IM corresponding to the CSI process, or

The virtual bandwidth configuration information corresponding to the CSI process is the virtual bandwidth configuration information of the NZP CSI-RS and/or the CSI-IM corresponding to the CSI process.

With reference to the first aspect, or any one of the first to the thirteenth possible implementation manners and the nineteenth possible implementation manner of the first aspect, in a twenty-second possible implementation manner of the first aspect, the virtual bandwidth configuration information is used to indicate a virtual bandwidth corresponding to resource allocation for the UE, where the number of virtual bandwidths corresponding to resource allocation for the UE is at least one.

With reference to the twenty-second possible implementation manner of the first aspect, in a twenty-third possible implementation manner of the first aspect, the virtual bandwidth corresponding to resource allocation for the UE and the virtual bandwidth corresponding to the CSI process are configured independently.

With reference to the twenty second possible implementation manner of the first aspect, in a twenty fourth possible implementation manner of the first aspect, the resource included in the resource allocation for the UE for one time is a resource on at least one virtual bandwidth.

With reference to the twenty-second possible implementation manner of the first aspect, in a twenty-fifth possible implementation manner of the first aspect, after the receiving, by the UE, at least one piece of virtual bandwidth configuration information, the method further includes:

the UE receives resource allocation information, wherein the resource allocation information comprises index information of at least one virtual bandwidth corresponding to the resource allocated to the UE.

With reference to the twenty-second possible implementation manner of the first aspect, in a twenty-sixth possible implementation manner of the first aspect, after the receiving, by the UE, at least one piece of virtual bandwidth configuration information, the method further includes:

and the UE receives resource allocation information, wherein the length of the resource allocation information is determined by the size of the virtual bandwidth.

With reference to the first aspect, in a twenty-seventh possible implementation manner of the first aspect, when the UE receives at least two pieces of virtual bandwidth configuration information, the method further includes:

the UE receives scheduling information of crossing virtual bandwidths, wherein the scheduling information comprises index information used for indicating the virtual bandwidth corresponding to the resource scheduled by the scheduling information.

With reference to the twenty-second possible implementation manner of the first aspect, in a twenty-eighth possible implementation manner of the first aspect, the size of the resource block set in the virtual bandwidth is determined according to a virtual bandwidth or a maximum downlink available bandwidth or a downlink transmission bandwidth.

With reference to the first aspect and any one of the first to thirteenth possible implementation manners of the first aspect, in a twenty-ninth possible implementation manner of the first aspect, the method further includes:

and the UE receives third configuration information of rate matching and quasi co-sited hypothesis corresponding to the virtual bandwidth.

With reference to the first aspect and any one of the first to thirteenth possible implementation manners of the first aspect, in a thirty possible implementation manner of the first aspect, the method further includes:

the UE receives fourth configuration information of a quasi co-sited hypothesis corresponding to the virtual bandwidth, where the fourth configuration information includes at least one of the following information: port number of CRS, subframe position information of CRS, position information of a first symbol of PDSCH, multicast/broadcast single frequency network MBSFN configuration information in the virtual bandwidth and ZPCSI-RS configuration information in the virtual bandwidth.

With reference to the first aspect and any one of the first to thirteenth possible implementation manners of the first aspect, in a thirty-first possible implementation manner of the first aspect, the method further includes:

the UE receives fifth configuration information assumed to be quasi co-sited corresponding to the virtual bandwidth, where the fifth configuration information includes at least one of the following information: and configuration information of a CSI-RS quasi co-sited with the demodulation reference signal DM RS and configuration information of a CRS quasi co-sited with the CSI-RS.

With reference to any one of the twenty-ninth to thirty-first possible implementation manners of the first aspect, in a thirty-second possible implementation manner of the first aspect, the reference signal used for the quasi co-sited assumption and/or rate matching is a reference signal outside the virtual bandwidth or a reference signal whose transmission bandwidth is greater than the virtual bandwidth or a reference signal whose transmission bandwidth crosses the virtual bandwidth.

With reference to the first aspect and any one of the first to thirteenth possible implementation manners of the first aspect, in a thirty-third possible implementation manner of the first aspect, the method further includes:

and the UE receives sixth configuration information, wherein the sixth configuration information is used for indicating transmission resources of Physical Uplink Control Channel (PUCCH) acknowledgement signals/negative acknowledgement signals (ACK/NACK) corresponding to the virtual bandwidth.

In a second aspect, an embodiment of the present invention provides a bandwidth configuration method, including:

the base station determines at least one virtual bandwidth for signal receiving and/or signal processing of User Equipment (UE);

the base station sends at least one piece of virtual bandwidth configuration information to the UE to indicate the UE to receive and/or process signals according to at least one piece of virtual bandwidth in the virtual bandwidth indicated by the at least one piece of virtual bandwidth configuration information, wherein each piece of virtual bandwidth is a part or all of downlink maximum available bandwidth or downlink transmission bandwidth, and the downlink maximum available bandwidth is the maximum bandwidth available for downlink transmission.

With reference to the second aspect, in a first possible implementation manner of the second aspect, if at least two pieces of virtual bandwidth configuration information are sent by the base station to the UE, the method further includes:

and the base station sends first configuration information to the UE, wherein the first configuration information is used for indicating the UE to receive or process signals according to a virtual bandwidth corresponding to at least one virtual bandwidth configuration information in the at least two pieces of virtual bandwidth configuration information.

With reference to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the method further includes:

and the base station sends second configuration information for signal receiving and/or signal processing on the virtual bandwidth to the UE, wherein the second configuration information is the configuration information of the signal or the signal processing.

With reference to the second aspect, in a third possible implementation manner of the second aspect, the virtual bandwidth configuration information is used to instruct the UE to perform at least one signal reception or signal processing on each of virtual bandwidths corresponding to the at least one virtual bandwidth configuration information.

With reference to the second aspect and any one of the first to third possible implementation manners of the second aspect, in a fourth possible implementation manner of the second aspect, the signal receiving and/or signal processing includes at least one of the following signal receiving or signal processing:

wherein the common signal reception comprises at least one of:

With reference to the second aspect, in a fifth possible implementation manner of the second aspect, the virtual bandwidth configuration information includes at least one of size, location information, type, and downlink transmission power information of the virtual bandwidth.

With reference to the fifth possible implementation manner of the second aspect, in a sixth possible implementation manner of the second aspect, the location information of the virtual bandwidth includes starting location information of the virtual bandwidth or center frequency information of the virtual bandwidth, where the starting location of the virtual bandwidth is a starting location of any one resource block set in each resource block set divided according to a maximum downlink available bandwidth or a downlink transmission bandwidth.

With reference to the fifth possible implementation manner of the second aspect, in a seventh possible implementation manner of the second aspect, the size of the virtual bandwidth is equal to a sum of sizes of at least one resource block set in each resource block set divided according to the maximum downlink available bandwidth or the downlink transmission bandwidth, or

The size of the virtual bandwidth is predefined.

With reference to the fifth possible implementation manner of the second aspect, in an eighth possible implementation manner of the second aspect, the downlink transmission power information includes a transmission power of a cell-specific reference signal CRS or a simplified cell-specific reference signal RCRS.

With reference to the fifth possible implementation manner of the second aspect, in a ninth possible implementation manner of the second aspect, the type of the virtual bandwidth is at least one of a centralized virtual bandwidth, a non-continuous virtual bandwidth, and a distributed virtual bandwidth.

With reference to the fifth possible implementation manner of the second aspect, in a tenth possible implementation manner of the second aspect, when the base station sends two or more pieces of virtual bandwidth configuration information to the UE, at least one of location information, size, type, and downlink transmission power information corresponding to a virtual bandwidth indicated by any two pieces of virtual bandwidth configuration information in the two or more pieces of virtual bandwidth configuration information is different.

With reference to the second aspect, in an eleventh possible implementation manner of the second aspect, the sending, by the base station, at least one piece of virtual bandwidth configuration information to the UE includes:

and the base station sends at least one piece of virtual bandwidth configuration information carried in a broadcast message signaling or a multicast signaling or a UE dedicated signaling to the UE.

With reference to the second aspect, in a twelfth possible implementation manner of the second aspect, the virtual bandwidth configuration information includes information used to indicate whether a common signal and/or a common channel is transmitted on the virtual bandwidth, where the common signal includes at least one of a CRS, a cell-specific CSI-RS, a system information block, a primary synchronization signal, a secondary synchronization signal, and a discovery signal; the common channel includes at least one of a physical broadcast channel and a physical common control channel.

With reference to the second aspect and any one of the first to twelfth possible implementation manners of the second aspect, in a thirteenth possible implementation manner of the second aspect, the sending, by the base station, the at least one piece of virtual bandwidth configuration information to the UE includes:

the base station sends virtual bandwidth configuration information corresponding to each CSI-RS in at least one CSI-RS to the UE, so that the UE receives the corresponding CSI-RS according to at least one virtual bandwidth in the virtual bandwidth indicated by the at least one virtual bandwidth configuration information, wherein the CSI-RS is a non-zero power channel state information reference signal NZP CSI-RS or a zero power channel state information reference signal ZP CSI-RS.

With reference to the thirteenth possible implementation manner of the second aspect, in a fourteenth possible implementation manner of the second aspect, when the CSI-RS is an NZP CSI-RS, the sequence of the NZP CSI-RS is generated based on a preset formula according to a virtual bandwidth corresponding to the NZP CSI-RS; or

The NZP CSI-RS sequence is obtained by intercepting a sequence generated on the basis of a preset formula according to downlink transmission bandwidth according to the position of a virtual bandwidth corresponding to the NZP CSI-RS in the downlink transmission bandwidth; or

And the NZP CSI-RS sequence is obtained by intercepting the sequence generated on the basis of a preset formula according to the maximum downlink available bandwidth according to the position of the virtual bandwidth of the NZP CSI-RS at the maximum downlink available bandwidth.

With reference to the thirteenth possible implementation manner of the second aspect, in a fifteenth possible implementation manner of the second aspect, the method further includes:

and when the CSI-RS is the NZP CSI-RS, the base station sends the transmission power information corresponding to the NZP CSI-RS on the virtual bandwidth corresponding to the virtual bandwidth configuration information to the UE.

With reference to the second aspect and any one of the first to twelfth possible implementation manners of the second aspect, in a sixteenth possible implementation manner of the second aspect, the sending, by the base station, the at least one piece of virtual bandwidth configuration information to the UE includes:

and the base station sends virtual bandwidth configuration information corresponding to each CSI-IM in at least one channel state information interference measurement CSI-IM to the UE.

With reference to the second aspect and any one of the first to twelfth possible implementation manners of the second aspect, in a seventeenth possible implementation manner of the second aspect, the sending, by the base station, the at least one piece of virtual bandwidth configuration information to the UE includes:

the base station sends virtual bandwidth configuration information corresponding to each CSI process in at least one CSI process to the UE, so that the UE performs measurement or measurement feedback of the CSI according to the virtual bandwidth configuration information corresponding to each CSI process.

With reference to the seventeenth possible implementation manner of the second aspect, in an eighteenth possible implementation manner of the second aspect, the starting position of the virtual bandwidth is a starting position of any one of sub-bands divided according to a maximum downlink available bandwidth or a downlink transmission bandwidth; and/or

With reference to the seventeenth possible implementation manner of the second aspect, in a nineteenth possible implementation manner of the second aspect, the virtual bandwidth corresponding to the CSI process covers a range of the virtual bandwidth of the NZP CSI-RS and/or the CSI-IM corresponding to the CSI process, or

With reference to the second aspect, or any one of the first to twelfth possible implementation manners and the seventeenth possible implementation manner of the second aspect, in a twentieth possible implementation manner of the second aspect, the virtual bandwidth configuration information is used to indicate a virtual bandwidth corresponding to resource allocation for the UE, where the number of virtual bandwidths corresponding to resource allocation for the UE is at least one.

With reference to the twentieth possible implementation manner of the second aspect, in a twenty-first possible implementation manner of the second aspect, the virtual bandwidth corresponding to resource allocation for the UE and the virtual bandwidth corresponding to the CSI process are configured independently.

With reference to the twenty-second possible implementation manner of the second aspect, in a twenty-second possible implementation manner of the second aspect, the resource that is included in the resource allocation for the UE once is a resource on at least one virtual bandwidth.

With reference to the twenty-third possible implementation manner of the second aspect, in a twenty-third possible implementation manner of the second aspect, after the sending, by the base station, the virtual bandwidth configuration information to the UE, the method further includes:

and the base station sends resource allocation information to the UE, wherein the resource allocation information comprises index information of at least one virtual bandwidth corresponding to the resource.

With reference to the twenty-fourth possible implementation manner of the second aspect, in a twenty-fourth possible implementation manner of the second aspect, after the sending, by the base station, the virtual bandwidth configuration information to the UE, the method further includes:

and the base station sends resource allocation information to the UE, wherein the length of the resource allocation information is determined by the size of the virtual bandwidth.

With reference to the second aspect, in a twenty-fifth possible implementation manner of the second aspect, when the base station sends at least two pieces of virtual bandwidth configuration information to the UE, the method further includes:

the base station sends scheduling information of crossing virtual bandwidth to UE, and the scheduling information comprises index information which is sent by the base station to the UE and used for indicating the virtual bandwidth corresponding to the scheduling information.

With reference to the twentieth possible implementation manner of the second aspect, in a twenty-sixth possible implementation manner of the second aspect, the size of the resource block set in the virtual bandwidth is determined according to the virtual bandwidth or the maximum downlink available bandwidth or the downlink transmission bandwidth.

With reference to the second aspect and any one of the first to twelfth possible implementation manners of the second aspect, in a twenty-seventh possible implementation manner of the second aspect, the method further includes:

and the base station sends third configuration information of rate matching and quasi co-station hypothesis corresponding to the virtual bandwidth to the UE.

With reference to the second aspect and any one of the first to twelfth possible implementation manners of the second aspect, in a twenty-eighth possible implementation manner of the second aspect, the method further includes:

the base station sends fourth configuration information of a quasi co-sited hypothesis corresponding to the virtual bandwidth to the UE, wherein the fourth configuration information comprises at least one of the following information: port number of CRS, subframe position information of CRS, position information of a first symbol of PDSCH, multicast/broadcast single frequency network MBSFN configuration information in the virtual bandwidth and ZP CSI-RS configuration information in the virtual bandwidth.

With reference to the second aspect and any one of the first to twelfth possible implementation manners of the second aspect, in a twenty-ninth possible implementation manner of the second aspect, the method further includes:

the base station sends, to the UE, fifth configuration information assumed to be quasi co-sited corresponding to the virtual bandwidth, where the fifth configuration information includes at least one of the following information: and configuration information of a CSI-RS quasi co-sited with the demodulation reference signal DM RS and configuration information of a CRS quasi co-sited with the CSI-RS.

With reference to any one of the twenty-seventh to twenty-ninth possible implementation manners of the second aspect, in a thirty-third possible implementation manner of the second aspect, the reference signal used for the quasi co-sited assumption and/or rate matching is a reference signal outside the virtual bandwidth or a reference signal whose transmission bandwidth is greater than the virtual bandwidth or a reference signal whose transmission bandwidth crosses the virtual bandwidth.

With reference to the second aspect and any one of the first to twelfth possible implementation manners of the second aspect, in a thirty-first possible implementation manner of the second aspect, the method further includes:

and the base station sends sixth configuration information to the UE, wherein the sixth configuration information is used for indicating the transmission resources of the physical uplink control channel PUCCH acknowledgement signals/negative acknowledgement signals ACK/NACK corresponding to the virtual bandwidth.

In a third aspect, an embodiment of the present invention provides a bandwidth configuration apparatus, including:

the receiving module is used for receiving at least one piece of virtual bandwidth configuration information, wherein the virtual bandwidth configuration information is used for indicating the configuration of virtual bandwidth;

and the processing module is configured to perform signal reception and/or signal processing according to at least one of the virtual bandwidths indicated by the at least one piece of virtual bandwidth configuration information, where each of the virtual bandwidths is a part or all of a maximum downlink available bandwidth or a downlink transmission bandwidth, and the maximum downlink available bandwidth is a maximum bandwidth available for downlink transmission.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the processing module is specifically configured to perform signal reception or signal processing on each of all virtual bandwidths corresponding to the at least one piece of virtual bandwidth configuration information.

With reference to the third aspect, in a second possible implementation manner of the third aspect, the receiving module is specifically configured to receive at least two pieces of virtual bandwidth configuration information, and the receiving module is further configured to receive first configuration information, where the first configuration information is used to instruct the processing module to perform signal reception or signal processing according to a virtual bandwidth corresponding to at least one piece of virtual bandwidth configuration information in the at least two pieces of virtual bandwidth configuration information.

With reference to the first or second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the receiving module is further configured to receive second configuration information for performing signal reception and/or signal processing on the virtual bandwidth, where the second configuration information is the configuration information of the signal or signal processing.

With reference to the third aspect, in a fourth possible implementation manner of the third aspect, the method is characterized in that: the virtual bandwidth configuration information is used to instruct the processing module to perform at least one signal reception or signal processing on each of the virtual bandwidths corresponding to the at least one virtual bandwidth configuration information.

With reference to the third aspect and any one of the first to fourth possible implementation manners of the third aspect, in a fifth possible implementation manner of the third aspect, the signal receiving and/or signal processing includes at least one of the following signal receiving or signal processing:

wherein the common signal reception comprises at least one of:

With reference to the third aspect, in a sixth possible implementation manner of the third aspect, the virtual bandwidth configuration information includes at least one of size, location information, type, and downlink transmission power information of the virtual bandwidth.

With reference to the sixth possible implementation manner of the third aspect, in a seventh possible implementation manner of the third aspect, the position information of the virtual bandwidth includes start position information of the virtual bandwidth or center frequency information of the virtual bandwidth, where the start position of the virtual bandwidth is a start position of any one resource block set in each resource block set divided according to a maximum downlink available bandwidth or a downlink transmission bandwidth.

With reference to the sixth possible implementation manner of the third aspect, in an eighth possible implementation manner of the third aspect, the size of the virtual bandwidth is equal to a sum of sizes of at least one resource block set in each resource block set divided according to the maximum downlink available bandwidth or the downlink transmission bandwidth, or

The size of the virtual bandwidth is predefined.

With reference to the sixth possible implementation manner of the third aspect, in a ninth possible implementation manner of the third aspect, the downlink transmission power information includes a transmission power of a CRS or a simplified cell-specific reference signal RCRS.

With reference to the sixth possible implementation manner of the third aspect, in a tenth possible implementation manner of the third aspect, the type of the virtual bandwidth is at least one of a centralized virtual bandwidth, a discontinuous virtual bandwidth, and a distributed virtual bandwidth.

With reference to the sixth possible implementation manner of the third aspect, in an eleventh possible implementation manner of the third aspect, when the receiving module is specifically configured to receive at least two pieces of virtual bandwidth configuration information, at least one of position information, size, type, and downlink transmission power information corresponding to a virtual bandwidth indicated by any two pieces of virtual bandwidth configuration information in the at least two pieces of virtual bandwidth configuration information is different.

With reference to the third aspect, in a twelfth possible implementation manner of the third aspect, the receiving module is specifically configured to receive at least one piece of virtual bandwidth configuration information carried in a broadcast message signaling or a multicast signaling or a UE-specific signaling.

With reference to the third aspect, in a thirteenth possible implementation manner of the third aspect, the virtual bandwidth configuration information includes information used to indicate whether a common signal and/or a common channel is transmitted on the virtual bandwidth, where the common signal includes at least one of a CRS, a cell-specific CSI-RS, a system information block, a primary synchronization signal, a secondary synchronization signal, and a discovery signal; the common channel includes at least one of a physical broadcast channel and a common control channel.

With reference to the third aspect and any one of the first to thirteenth possible implementation manners of the third aspect, in a fourteenth possible implementation manner of the third aspect, if the at least one piece of virtual bandwidth configuration information is virtual bandwidth configuration information corresponding to each CSI-RS in at least one CSI-RS, the processing module is specifically configured to receive the corresponding CSI-RS according to the configured virtual bandwidth, where the CSI-RS is a non-zero power channel state information reference signal NZP CSI-RS or a zero power channel state information reference signal ZP CSI-RS.

With reference to the fourteenth possible implementation manner of the third aspect, in a fifteenth possible implementation manner of the third aspect, when the CSI-RS is an NZP CSI-RS, the sequence of the NZP CSI-RS is generated based on a preset formula according to a virtual bandwidth corresponding to the NZP CSI-RS; or

With reference to the fourteenth possible implementation manner of the third aspect, in a sixteenth possible implementation manner of the third aspect, the processing module is specifically configured to perform RRM measurement according to the virtual bandwidth of the CSI-RS.

With reference to the fourteenth possible implementation manner of the third aspect, in a seventeenth possible implementation manner of the third aspect, when the CSI-RS is an NZP CSI-RS, the processing module is further configured to receive transmission power information corresponding to the NZP CSI-RS on a virtual bandwidth corresponding to the virtual bandwidth configuration information.

With reference to the third aspect and any one of the first to thirteenth possible implementation manners of the third aspect, in an eighteenth possible implementation manner of the third aspect, the receiving module is specifically configured to:

and receiving virtual bandwidth configuration information corresponding to each CSI-IM in at least one CSI-IM.

With reference to the third aspect and any one of the first to thirteenth possible implementation manners of the third aspect, in a nineteenth possible implementation manner of the third aspect, the at least one piece of virtual bandwidth configuration information is virtual bandwidth configuration information corresponding to each CSI process in at least one CSI process, and the processing module is specifically configured to:

and measuring or measuring feedback of the CSI is carried out according to the virtual bandwidth configuration information corresponding to each CSI process.

With reference to the nineteenth possible implementation manner of the third aspect, in a twentieth possible implementation manner of the third aspect, the starting position of the virtual bandwidth is a starting position of any one of sub-bands divided according to a maximum downlink available bandwidth or a downlink transmission bandwidth; and/or

With reference to the nineteenth possible implementation manner of the third aspect, in a twenty-first possible implementation manner of the third aspect, the virtual bandwidth corresponding to the CSI process covers a range of the virtual bandwidth of the NZP CSI-RS and/or the CSI-IM corresponding to the CSI process, or

With reference to the third aspect, or any one of the first to the thirteenth and nineteenth possible implementation manners of the third aspect, in a twenty-second possible implementation manner of the third aspect, the virtual bandwidth configuration information is used to indicate a virtual bandwidth corresponding to resource allocation for the UE, where the number of virtual bandwidths corresponding to resource allocation for the UE is at least one.

With reference to the twenty second possible implementation manner of the third aspect, in a twenty third possible implementation manner of the third aspect, the virtual bandwidth corresponding to resource allocation for the UE and the virtual bandwidth corresponding to the CSI process are configured independently.

With reference to the twenty second possible implementation manner of the third aspect, in a twenty fourth possible implementation manner of the third aspect, the resource that is included in the resource allocation for the UE at one time is a resource on at least one virtual bandwidth.

With reference to the twenty-second possible implementation manner of the third aspect, in a twenty-fifth possible implementation manner of the third aspect, the receiving module is further configured to receive resource allocation information, where the resource allocation information includes index information of at least one virtual bandwidth corresponding to a resource allocated to the UE.

With reference to the twenty-second possible implementation manner of the third aspect, in a twenty-sixth possible implementation manner of the third aspect, the receiving module is further configured to receive resource allocation information, where a length of the resource allocation information is determined by a size of the virtual bandwidth.

With reference to the third aspect, in a twenty-seventh possible implementation manner of the third aspect, when the receiving module receives at least two pieces of virtual bandwidth configuration information, the receiving module is further configured to receive scheduling information spanning virtual bandwidths, where the scheduling information includes index information used to indicate a virtual bandwidth corresponding to a resource scheduled by the scheduling information.

With reference to the twenty second possible implementation manner of the third aspect, in a twenty eighth possible implementation manner of the third aspect, the size of the resource block set in the virtual bandwidth is determined according to the virtual bandwidth or the maximum downlink available bandwidth or the downlink transmission bandwidth.

With reference to the third aspect and any one of the first to thirteenth possible implementation manners of the third aspect, in a twenty-ninth possible implementation manner of the third aspect, the receiving module is further configured to receive third configuration information of rate matching and quasi co-sited assumption corresponding to the virtual bandwidth.

With reference to the third aspect and any one of the first to thirteenth possible implementation manners of the third aspect, in a thirty possible implementation manner of the third aspect, the receiving module is further configured to receive fourth configuration information of a quasi co-sited hypothesis corresponding to the virtual bandwidth, where the fourth configuration information includes at least one of the following information: port number of CRS, subframe position information of CRS, position information of a first symbol of PDSCH, multicast/broadcast single frequency network MBSFN configuration information in the virtual bandwidth and ZP CSI-RS configuration information in the virtual bandwidth.

With reference to the third aspect and any one of the first to thirteenth possible implementation manners of the third aspect, in a thirty-first possible implementation manner of the third aspect, the receiving module is further configured to receive fifth configuration information of a quasi co-sited hypothesis corresponding to the virtual bandwidth, where the fifth configuration information includes at least one of the following information: and configuration information of a CSI-RS quasi co-sited with the demodulation reference signal DM RS and configuration information of a CRS quasi co-sited with the CSI-RS.

With reference to any one of twenty-ninth to thirty-first possible implementation manners of the third aspect, in a thirty-second possible implementation manner of the third aspect, the reference signal used for the quasi co-sited assumption and/or rate matching is a reference signal outside the virtual bandwidth or a reference signal whose transmission bandwidth is greater than the virtual bandwidth or a reference signal whose transmission bandwidth crosses the virtual bandwidth.

With reference to the third aspect and any one of the first to thirteenth possible implementation manners of the third aspect, in a thirty-third possible implementation manner of the third aspect, the receiving module is further configured to receive sixth configuration information, where the sixth configuration information is used to indicate transmission resources of a physical uplink control channel PUCCH acknowledgement signal/negative acknowledgement signal ACK/NACK corresponding to the virtual bandwidth.

In a fourth aspect, an embodiment of the present invention provides a bandwidth configuration apparatus, including:

a determining module, configured to determine at least one virtual bandwidth for signal reception and/or signal processing by a user equipment UE;

a sending module, configured to send at least one piece of virtual bandwidth configuration information to the UE, so as to instruct the UE to perform signal reception and/or signal processing according to at least one piece of virtual bandwidth in the virtual bandwidths indicated by the at least one piece of virtual bandwidth configuration information, where each piece of virtual bandwidth is a part or all of a downlink maximum available bandwidth or a downlink transmission bandwidth, and the downlink maximum available bandwidth is a maximum bandwidth available for downlink transmission.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the sending module is specifically configured to send at least two pieces of virtual bandwidth configuration information to the UE, and then the sending module is further configured to send first configuration information to the UE, where the first configuration information is used to instruct the UE to perform signal reception or signal processing according to a virtual bandwidth corresponding to at least one piece of virtual bandwidth configuration information in the at least two pieces of virtual bandwidth configuration information.

With reference to the fourth aspect or the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the sending module is further configured to send, to the UE, second configuration information for performing signal reception and/or signal processing on the virtual bandwidth, where the second configuration information is the configuration information of the signal or the signal processing.

With reference to the fourth aspect, in a third possible implementation manner of the fourth aspect, the virtual bandwidth configuration information is used to instruct the UE to perform at least one signal reception or signal processing on each of virtual bandwidths corresponding to the at least one virtual bandwidth configuration information.

With reference to the fourth aspect and any one of the first to third possible implementation manners of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the signal receiving and/or signal processing includes at least one of the following signal receiving or signal processing:

wherein the common signal reception comprises at least one of:

With reference to the fourth aspect, in a fifth possible implementation manner of the fourth aspect, the virtual bandwidth configuration information includes at least one of size, location information, type, and downlink transmission power information of the virtual bandwidth.

With reference to the fifth possible implementation manner of the fourth aspect, in a sixth possible implementation manner of the fourth aspect, the location information of the virtual bandwidth includes start location information of the virtual bandwidth or center frequency information of the virtual bandwidth, where the start location of the virtual bandwidth is a start location of any one resource block set in each resource block set divided according to a maximum downlink available bandwidth or a downlink transmission bandwidth.

With reference to the fifth possible implementation manner of the fourth aspect, in a seventh possible implementation manner of the fourth aspect, the size of the virtual bandwidth is equal to a sum of sizes of at least one resource block set in each resource block set divided according to the maximum downlink available bandwidth or the downlink transmission bandwidth, or

The size of the virtual bandwidth is predefined.

With reference to the fifth possible implementation manner of the fourth aspect, in an eighth possible implementation manner of the fourth aspect, the downlink transmission power information includes a transmission power of a CRS or a simplified cell-specific reference signal RCRS.

With reference to the fifth possible implementation manner of the fourth aspect, in a ninth possible implementation manner of the fourth aspect, the type of the virtual bandwidth is at least one of a centralized virtual bandwidth, a non-continuous virtual bandwidth, and a distributed virtual bandwidth.

With reference to the fifth possible implementation manner of the fourth aspect, in a tenth possible implementation manner of the fourth aspect, when the sending module sends two or more pieces of virtual bandwidth configuration information to the UE, at least one of location information, size, type, and downlink transmission power information corresponding to virtual bandwidths indicated by any two pieces of virtual bandwidth configuration information in the at least two pieces of virtual bandwidth configuration information is different.

With reference to the fourth aspect, in an eleventh possible implementation manner of the fourth aspect, the sending module is specifically configured to send, to the UE, at least one piece of virtual bandwidth configuration information carried in a broadcast message signaling or a multicast signaling or a UE-specific signaling.

With reference to the fourth aspect, in a twelfth possible implementation manner of the fourth aspect, the virtual bandwidth configuration information includes information used to indicate whether a common signal and/or a common channel is transmitted on the virtual bandwidth, where the common signal includes at least one of a CRS, a cell-specific CSI-RS, a system information block, a primary synchronization signal, a secondary synchronization signal, and a discovery signal; the common channel includes at least one of a physical broadcast channel and a physical common control channel.

With reference to the fourth aspect and any one of the first to twelfth possible implementation manners of the fourth aspect, in a thirteenth possible implementation manner of the fourth aspect, the sending module is specifically configured to send, to a UE, virtual bandwidth configuration information corresponding to each CSI-RS in at least one CSI-RS, so that the UE receives the corresponding CSI-RS according to at least one virtual bandwidth in the virtual bandwidth indicated by the at least one virtual bandwidth configuration information, where the CSI-RS is a non-zero power channel state information reference signal NZP CSI-RS or a zero power channel state information reference signal ZP CSI-RS.

With reference to the thirteenth possible implementation manner of the fourth aspect, in a fourteenth possible implementation manner of the fourth aspect, when the CSI-RS is an NZP CSI-RS, the sequence of the NZP CSI-RS is generated based on a preset formula according to a virtual bandwidth corresponding to the NZP CSI-RS; or

With reference to the thirteenth possible implementation manner of the fourth aspect, in a fifteenth possible implementation manner of the fourth aspect, when the CSI-RS is an NZP CSI-RS, the sending module is further configured to send, to the UE, transmission power information corresponding to the NZP CSI-RS on a virtual bandwidth corresponding to the virtual bandwidth configuration information.

With reference to the fourth aspect and any one of the first to twelfth possible implementation manners of the fourth aspect, in a sixteenth possible implementation manner of the fourth aspect, the sending module is specifically configured to send, to the UE, virtual bandwidth configuration information corresponding to each CSI-IM in at least one CSI-IM for measuring channel state information interference.

With reference to the fourth aspect and any one of the first to twelfth possible implementation manners of the fourth aspect, in a seventeenth possible implementation manner of the fourth aspect, the sending module is specifically configured to send, to a UE, virtual bandwidth configuration information corresponding to each CSI process in at least one CSI process, so that the UE performs measurement or measurement feedback on the CSI according to the virtual bandwidth configuration information corresponding to each CSI process.

With reference to the seventeenth possible implementation manner of the fourth aspect, in an eighteenth possible implementation manner of the fourth aspect, the starting position of the virtual bandwidth is a starting position of any one of sub-bands divided according to a maximum downlink available bandwidth or a downlink transmission bandwidth; and/or

With reference to the seventeenth possible implementation manner of the fourth aspect, in a nineteenth possible implementation manner of the fourth aspect, the virtual bandwidth corresponding to the CSI process covers a range of the virtual bandwidth of the NZP CSI-RS and/or the CSI-IM corresponding to the CSI process, or

With reference to the fourth aspect, or any one of the first to twelfth possible implementation manners and the seventeenth possible implementation manner of the fourth aspect, in a twentieth possible implementation manner of the fourth aspect, the virtual bandwidth configuration information is used to indicate a virtual bandwidth corresponding to resource allocation for the UE, where the number of virtual bandwidths corresponding to resource allocation for the UE is at least one.

With reference to the twentieth possible implementation manner of the fourth aspect, in a twenty-first possible implementation manner of the fourth aspect, the virtual bandwidth corresponding to resource allocation for the UE and the virtual bandwidth corresponding to the CSI process are configured independently.

With reference to the twenty-second possible implementation manner of the fourth aspect, in a twenty-second possible implementation manner of the fourth aspect, the resource included in the resource allocation for the UE for one time is a resource on at least one virtual bandwidth.

With reference to the twentieth possible implementation manner of the fourth aspect, in a twenty-third possible implementation manner of the fourth aspect, the sending module is further configured to send resource allocation information to the UE, where the resource allocation information includes index information of at least one virtual bandwidth corresponding to the resource.

With reference to the twenty-fourth possible implementation manner of the fourth aspect, in a twenty-fourth possible implementation manner of the fourth aspect, the sending module is further configured to send resource allocation information to the UE, where a length of the resource allocation information is determined by a size of the virtual bandwidth.

With reference to the fourth aspect, in a twenty-fifth possible implementation manner of the fourth aspect, when the sending module sends at least two pieces of virtual bandwidth configuration information to the UE, the sending module is further configured to send scheduling information across virtual bandwidths to the UE, where the scheduling information includes index information that the base station sends, to the UE, the index information used for indicating that the scheduling information corresponds to a virtual bandwidth.

With reference to the twentieth possible implementation manner of the fourth aspect, in a twenty-sixth possible implementation manner of the fourth aspect, the size of the resource block set in the virtual bandwidth is determined according to the virtual bandwidth or the maximum downlink available bandwidth or the downlink transmission bandwidth.

With reference to the fourth aspect and any one of the first to twelfth possible implementation manners of the fourth aspect, in a twenty-seventh possible implementation manner of the fourth aspect, the sending module is further configured to send, to the UE, third configuration information of rate matching and quasi co-sited hypothesis corresponding to the virtual bandwidth.

With reference to the fourth aspect and any one of the first to the twelfth possible implementation manners of the fourth aspect, in a twenty-eighth possible implementation manner of the fourth aspect, the sending module is further configured to send, to the UE, fourth configuration information of a quasi co-sited hypothesis corresponding to the virtual bandwidth, where the fourth configuration information includes at least one of the following information: port number of CRS, subframe position information of CRS, position information of a first symbol of PDSCH, multicast/broadcast single frequency network MBSFN configuration information in the virtual bandwidth and ZP CSI-RS configuration information in the virtual bandwidth.

With reference to the fourth aspect and any one of the first to twelfth possible implementation manners of the fourth aspect, in a twenty-ninth possible implementation manner of the fourth aspect, the sending module is further configured to send, to the UE, fifth configuration information of a quasi co-sited hypothesis corresponding to the virtual bandwidth, where the fifth configuration information includes at least one of the following information: and configuration information of a CSI-RS quasi co-sited with the demodulation reference signal DM RS and configuration information of a CRS quasi co-sited with the CSI-RS.

With reference to any one of the twenty-seventh to twenty-ninth possible implementation manners of the fourth aspect, in a thirty possible implementation manner of the fourth aspect, the reference signal used for the quasi co-sited assumption and/or rate matching is a reference signal outside the virtual bandwidth or a reference signal whose transmission bandwidth is greater than the virtual bandwidth or a reference signal whose transmission bandwidth crosses the virtual bandwidth.

With reference to the fourth aspect or any one of the first to the twelfth possible implementation manners of the fourth aspect, in a thirty-first possible implementation manner of the fourth aspect, the sending module is further configured to send sixth configuration information to the UE, where the sixth configuration information is used to indicate transmission resources of a physical uplink control channel PUCCH acknowledgement signal/negative acknowledgement signal ACK/NACK corresponding to the virtual bandwidth.

At least one of the above technical solutions has the following beneficial effects:

the embodiment of the invention can flexibly configure the transmitting bandwidth of the signal and the bandwidth of signal processing such as measurement feedback required by UE (user equipment) and the like by configuring at least one piece of independent virtual bandwidth configuration information, and the signal receiving and/or signal processing are not required to be carried out according to the fixed bandwidth, thereby reducing the overhead and the complexity of the signal receiving and processing and enabling the signal receiving and/or signal processing to be more flexible.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic flowchart of a bandwidth configuration method according to an embodiment of the present invention;

fig. 2 is a schematic flowchart of a bandwidth configuration method according to a second embodiment of the present invention;

fig. 3 is a schematic flowchart of a bandwidth configuration method according to a third embodiment of the present invention;

fig. 4 is a schematic flowchart of a bandwidth configuration method according to a seventh embodiment of the present invention;

fig. 5 is a schematic flowchart of a bandwidth configuration method according to an eighth embodiment of the present invention;

fig. 6 is a schematic flowchart of a bandwidth configuration method according to a ninth embodiment of the present invention;

fig. 7 is a schematic flowchart of a bandwidth configuration method according to a tenth embodiment of the present invention;

fig. 8 is a schematic flowchart of a bandwidth allocation method according to an eleventh embodiment of the present invention;

fig. 9 is a schematic flowchart of a bandwidth allocation method according to a fifteenth embodiment of the present invention;

FIG. 10 is a diagram illustrating examples of non-contiguous virtual bandwidths according to an embodiment of the present invention;

FIG. 11 is a diagram illustrating examples of distributed virtual bandwidth provided by embodiments of the present invention;

fig. 12 is a schematic structural diagram of a bandwidth allocation apparatus according to a sixteenth embodiment of the present invention;

fig. 13 is a schematic structural diagram of a bandwidth allocation apparatus according to an eighteenth embodiment of the present invention;

fig. 14 is a schematic structural diagram of a UE according to a twenty embodiment of the present invention;

fig. 15 is a schematic structural diagram of a base station according to twenty-first embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Fig. 1 is a schematic flowchart of a bandwidth configuration method according to an embodiment of the present invention. The method is implemented by a bandwidth configuration device configured in the UE, and as shown in fig. 1, the method includes:

step 101, the UE receives at least one piece of virtual bandwidth configuration information.

Specifically, the UE receives at least one piece of virtual bandwidth configuration information sent by the base station, where optionally, the at least one piece may also be at least two pieces of virtual bandwidth configuration information, where the virtual bandwidth configuration information is used to indicate configuration of a virtual bandwidth, and the virtual bandwidth configuration information and the virtual bandwidth are in a one-to-one relationship, that is, one piece of virtual bandwidth configuration information indicates configuration of one virtual bandwidth. The UE receiving the virtual bandwidth configuration information may specifically include:

a. the UE receives the virtual bandwidth configuration information, and then the UE receives and processes various signals on the virtual bandwidth;

b. and the UE receives the signal or the channel or processes the virtual bandwidth configuration information corresponding to the signal processing, and then the UE receives the signal or receives or processes the signal of the corresponding channel according to the virtual bandwidth configuration information of the signal.

The virtual bandwidth configuration information may be carried in physical layer signaling and/or higher layer signaling, and each of the virtual bandwidth configuration information is configured independently. For example, the virtual bandwidth configuration information is carried only through physical layer signaling or only through higher layer signaling, or a plurality of candidates of the virtual bandwidth configuration information are carried through higher layer signaling, and one of the plurality of candidates of the virtual bandwidth configuration information is configured through physical layer signaling as actually used virtual bandwidth configuration information.

And 102, the UE receives and/or processes signals according to at least one virtual bandwidth in the virtual bandwidths indicated by the at least one virtual bandwidth configuration information.

Specifically, each of the virtual bandwidths is a downlink maximum available bandwidth or a part or all of a downlink transmission bandwidth, and the downlink maximum available bandwidth is a maximum bandwidth available for downlink transmission. The downlink transmission bandwidth includes a downlink system bandwidth configured by a base station through a Master Information Block (MIB). Specifically, the virtual bandwidths indicated by the virtual bandwidth configuration information may be mutually independent, and attribute information such as the size, the position information, the type, the downlink transmission power information, and the like of each virtual bandwidth may be configured independently and is independent of other virtual bandwidths. Or, for a plurality of virtual bandwidths, at least one of attribute information such as size, location information, type, and downlink transmission power information of the corresponding virtual bandwidth is jointly configured or predefined.

Optionally, the UE receives at least one piece of virtual bandwidth configuration information, where the at least one piece of virtual bandwidth configuration information includes virtual bandwidth configuration information corresponding to different subframe sets, that is, for each subframe set, the virtual bandwidth configuration information may be configured independently, so that the virtual bandwidth configuration information indicates a virtual bandwidth on the subframe set.

The embodiment of the invention can flexibly configure the signal receiving bandwidth of the UE, the bandwidth of signal processing such as measurement feedback required by the UE and the like by the base station through configuring at least one piece of independent virtual bandwidth configuration information, and the like, and the signal receiving and/or signal processing are not required to be carried out according to the fixed bandwidth, thereby saving and reducing the overhead and the complexity of signal receiving and signal processing, and flexibly controlling the overhead and the complexity of signal receiving and signal processing feedback.

Optionally, in all embodiments of the present invention, in step 102, performing, by the UE, signal reception and/or signal processing according to at least one virtual bandwidth in the virtual bandwidths indicated by the at least one virtual bandwidth configuration information may include: and the UE receives or processes signals on each virtual bandwidth in all the virtual bandwidths corresponding to the at least one piece of virtual bandwidth configuration information.

Example two

In the above embodiment, in step 101, the UE receives at least one piece of virtual bandwidth configuration information, where the number of the virtual bandwidth configuration information is at least two. When the UE receives at least two pieces of virtual bandwidth configuration information, as shown in fig. 2, the method may include:

step 201, the UE receives at least two pieces of virtual bandwidth configuration information.

Step 202, the UE receives first configuration information.

Specifically, the first configuration information is used to instruct the UE to perform signal reception or signal processing according to a virtual bandwidth corresponding to at least one of the at least two pieces of virtual bandwidth configuration information.

Wherein, step 202 is optional, and step 203 can be directly executed.

Step 203, the UE receives and/or processes signals according to at least one of the virtual bandwidths indicated by the at least two pieces of virtual bandwidth configuration information.

Specifically, the UE may aggregate two or more virtual bandwidths of the virtual bandwidths indicated by the at least two pieces of virtual bandwidth configuration information, and perform signal reception and/or signal processing on the aggregated bandwidths.

In the embodiment of the invention, the base station can configure the UE to receive or process signals on different virtual bandwidths according to different first configuration information, and the UE does not need to use the same first configuration information to receive or process signals on the whole downlink transmission bandwidth or the downlink maximum available bandwidth, so that the flexibility is improved, and the processing complexity of the UE is reduced.

EXAMPLE III

The third embodiment of the present invention is optimized based on the above embodiments, and as shown in fig. 3, the method may further include:

step 301, the UE receives second configuration information for signal reception and/or signal processing on the virtual bandwidth.

Specifically, the second configuration information is configuration information of the signal or signal processing, which may be configured independently from the virtual bandwidth configuration information, or may be predefined, and is sent to the UE through a base station. In addition, the second configuration information may be parameter configuration information such as scrambling code information, port information, time domain parameters, frequency domain parameters, and the like of the signal, and may also be configuration information of signal processing such as channel estimation, signal detection, data demodulation, and the like, which is not limited herein.

Optionally, in all embodiments of the present invention, the virtual bandwidth configuration information may be used to instruct the UE to perform at least one signal reception or signal processing on each of the virtual bandwidths corresponding to the at least one virtual bandwidth configuration information.

Further, in all embodiments of the present invention, the signal reception and/or signal processing comprises at least one of the following signal reception or signal processing: channel State Information Reference Signal (CSI-RS) reception, Cell-specific Reference Signal (CRS) reception, Physical Downlink Control Channel (PDCCH) search, Enhanced Physical Downlink Control Channel (EPDCCH) search, Channel State Information (CSI) measurement, Radio Resource Management (RRM) measurement, CSI feedback, Physical Downlink Shared Channel (PDSCH) reception, Physical Hybrid Automatic Repeat Request indicator Channel (PDCCH) reception, Enhanced Physical Hybrid Automatic Repeat Request indicator Channel (PDCCH) reception, PMCH for short) receiving and public signal receiving; wherein the common signal reception comprises at least one of: a Physical Broadcast Channel (PBCH) reception, an Enhanced Physical broadcast Channel (ePBCH) reception, a Primary Synchronization Signal (PSS)/Secondary Synchronization Signal (SSS) reception, and a discovery Signal reception, so that for any one of the Signal reception or Signal processing, the UE may perform Signal reception or Signal processing according to different virtual bandwidths, and the UE may perform different Signal reception or Signal processing according to different virtual bandwidths, including different Channel reception or Channel processing.

Further, in all embodiments of the present invention, the virtual bandwidth configuration information includes at least one information of a size, a location information, a type, and downlink transmission power information of the virtual bandwidth, and the at least one information is described as follows:

a. the location information of the virtual bandwidth includes initial location information of the virtual bandwidth or center frequency information of the virtual bandwidth, where the initial location of the virtual bandwidth is preferably an initial location of any one Resource Block Group (Resource Block Group, abbreviated as RBG) in each Resource Block Group (Resource Block Group) divided according to a maximum downlink available bandwidth or a downlink transmission bandwidth. In an embodiment of the present invention, the entire set of resource blocks may be included in the virtual bandwidth.

Optionally, the center frequency information of the virtual bandwidth is any position in the maximum available bandwidth or the downlink transmission bandwidth. Preferably, the downlink maximum available bandwidth or the downlink transmission bandwidth is averagely divided into N parts, the center frequency information of the virtual bandwidth is the center frequency of one of the parts, for example, the center frequency information of the virtual bandwidth is the center frequency of the entire downlink maximum available bandwidth or the downlink transmission bandwidth, or the downlink maximum available bandwidth or the downlink transmission bandwidth is averagely divided into 2 parts, and the center frequency of the virtual bandwidth is the center frequency of the first part or the second part.

Preferably, the center frequency position of the virtual bandwidth may be a position of a subcarrier satisfying a positive multiple of a frequency of 100 kiloHertz (KHz) in a downlink maximum available bandwidth or a downlink transmission bandwidth.

When the virtual bandwidths of the two CSI-RSs overlap, REs to which the two CSI-RSs may correspond may overlap in an overlapping region, or the two CSI-RSs may share some Resource Elements (REs) in the overlapping region, or CSI-RSs with low priorities are not transmitted when the REs to which the two CSI-RSs correspond overlap in the overlapping region, where the priorities of the CSI-RSs are predefined, or the priorities of the CSI-RSs are implicitly notified, such as the priority of the CSI-RS with a low index number is high, or the priorities of the CSI-RSs are explicitly notified, such as the base station notifies the UE of the priority of each CSI-RS.

In addition, the start position information of the virtual bandwidth may also be any position in the downlink maximum available bandwidth or the downlink transmission bandwidth. The downlink transmission bandwidth may be a downlink system bandwidth of a serving cell.

b. The size of the virtual bandwidth is preferably equal to the sum of the sizes of at least one resource block set in each resource block set divided according to the downlink maximum available bandwidth or the downlink transmission bandwidth, or the size of the virtual bandwidth is predefined. For example, the size of the virtual bandwidth is one of standard downlink transmission bandwidths, such as 1.4/3/5/10/15/20 megahertz (MHz), or 6/15/25/50/75/100 Physical Resource Block (PRB). In addition, the size of the virtual bandwidth may be any size that is less than or equal to the maximum downlink available bandwidth or the downlink transmission bandwidth, and is not limited herein. In an embodiment of the present invention, the entire set of resource blocks may be included in the virtual bandwidth.

c. The downlink transmission power information includes transmission power of a CRS or a Reduced Cell-specific Reference Signal (RCRS). The downlink transmission power information corresponding to the virtual bandwidth may be the same as or different from the downlink transmission power information on the maximum available downlink bandwidth or the downlink transmission bandwidth, for example, the downlink transmission power information on the maximum available downlink bandwidth or the downlink transmission bandwidth is 46 milliwatt decibels (dBm), and the downlink transmission power information corresponding to the virtual bandwidth may be 46dBm, or 40dBm, or 23 dBm. The downlink transmission power information may be downlink reference signal transmission power information, for example, CRS transmission power or CSI-RS transmission power. In the embodiment of the invention, the downlink transmitting power on different bandwidths can be set more flexibly.

d. The type of the virtual bandwidth is at least one of a centralized virtual bandwidth, a discontinuous virtual bandwidth and a distributed virtual bandwidth. If the type of the virtual bandwidth is discontinuous virtual bandwidth, the number of discontinuous bandwidths included in the virtual bandwidth is predefined, for example, the virtual bandwidth includes 2 discontinuous bandwidth parts at most, and the size and the position information of the virtual bandwidth at this time include the size and the position information of each discontinuous bandwidth; if the type of the virtual bandwidth is distributed virtual bandwidth, the distance between the distributed virtual bandwidth components and the size of each virtual bandwidth component are predefined or the base station configures the virtual bandwidth components for the UE. The type of the virtual bandwidth may be continuous or discontinuous, such as the downstream transmission bandwidth is 10MHz, and the virtual bandwidth may be a continuous 5MHz bandwidth or two discontinuous 2.5MHz bandwidths, as shown in fig. 10. The virtual bandwidth may be centralized or distributed, for example, the virtual bandwidth may be centralized and continuous 5MHz, or distributed, for example, a starting position is a starting Physical Resource Block (PRB) of a first Resource Block set mapped in a distributed manner for the downlink transmission bandwidth, and the bandwidth size is a bandwidth corresponding to the 1 st and 2 nd Resource Block sets, or as shown in fig. 11. The Virtual bandwidth configuration information may further include mapping mode information from a Virtual Resource Block (VRB) to a Physical Resource Block (PRB).

Further, when the UE receives at least two pieces of virtual bandwidth configuration information, at least one of position information, size, type, and downlink transmission power information corresponding to virtual bandwidths indicated by any two pieces of virtual bandwidth configuration information in the at least two pieces of virtual bandwidth configuration information is different. When the virtual bandwidth configuration information is used to indicate a virtual bandwidth corresponding to at least one signal reception or signal processing, the location information, size, type, and downlink transmission power information of the virtual bandwidth corresponding to different signal reception or signal processing may be configured independently or jointly. The virtual bandwidths corresponding to different signal reception or signal processing may also be the same, and are not limited herein.

Optionally, in all embodiments of the present invention, the receiving, by the UE, at least one piece of virtual bandwidth configuration information includes: the UE receives at least one piece of virtual bandwidth configuration information carried in a broadcast message signaling or a multicast signaling or a UE-specific signaling. The broadcast message signaling, the multicast signaling, or the UE-specific signaling may specifically be physical layer signaling and/or higher layer signaling, and may be only carried by the physical layer signaling, or only carried by the higher layer signaling, or carried by the higher layer signaling, and configure one of multiple candidate virtual bandwidth configuration information as actually used virtual bandwidth configuration information by the physical layer signaling.

When the UE receives the virtual bandwidth configuration Information carried in the broadcast signaling, the broadcast signaling is at least one of MIB and System Information Block Type2 (SIB 2); when the UE receives the virtual bandwidth configuration information carried in the Multicast signaling, the Multicast signaling includes at least one of a Multimedia Broadcast Multicast Service (MBMS) control signaling and a Multicast signaling that is sent by a primary cell to the UE and used for indicating configuration information of a secondary cell; when the UE receives the virtual bandwidth configuration information carried in the UE-specific signaling, the UE-specific signaling includes at least one of a UE-specific Radio Resource Control (RRC) signaling and a UE-specific signaling sent by the primary cell to the UE for indicating the configuration information of the secondary cell.

Specifically, in all embodiments of the present invention, the virtual bandwidth configuration information may include information for indicating whether a common signal and/or a common channel is transmitted on the virtual bandwidth, where the common signal includes at least one of a CRS, a cell-specific CSI-RS, a system information block, a primary synchronization signal, a secondary synchronization signal, and a discovery signal; the common channel includes at least one of a physical broadcast channel and a common control channel. Wherein the common signal and/or the common channel may be transmitted over all of the virtual bandwidth or only a part of the virtual bandwidth, such as only one virtual bandwidth. When common signals and/or common channels are transmitted over multiple virtual bandwidths, the common signals and/or common channels transmitted over different virtual bandwidths may have the same or different configurations or parameters. In the embodiment of the invention, the UE can be flexibly configured to detect or receive the common signal and/or the common channel on the virtual bandwidth.

Example four

The fourth embodiment of the present invention provides a bandwidth configuration method, which is a specific application scenario based on the foregoing embodiments, and is specifically configured to configure a virtual bandwidth for CSI-RS.

In this embodiment, the at least one piece of virtual bandwidth configuration information is virtual bandwidth configuration information corresponding to each CSI-RS in the at least one CSI-RS, and the receiving, by the UE, a signal according to at least one virtual bandwidth in the virtual bandwidth indicated by the at least one piece of virtual bandwidth configuration information specifically includes: and the UE receives a corresponding CSI-RS according to the configured virtual bandwidth, wherein the CSI-RS is a non-zero power CSI-RS (NZP CSI-RS) or a zero power CSI-RS (ZP CSI-RS). When the number of the CSI-RSs configured by the UE receiving base station is at least two, each CSI-RS can be configured with a virtual bandwidth independently, and the virtual bandwidths of different CSI-RSs can be configured independently or jointly.

Further, when the CSI-RS is an NZP CSI-RS, the sequence of NZP CSI-RS may be implemented as follows:

the first method is as follows: the NZP CSI-RS sequence is generated based on a preset formula according to a virtual bandwidth corresponding to the NZP CSI-RS;

the second method comprises the following steps: the NZP CSI-RS sequence is obtained by intercepting a sequence generated based on a preset formula according to downlink transmission bandwidth according to the position of a virtual bandwidth corresponding to the NZP CSI-RS in the downlink transmission bandwidth;

the third method comprises the following steps: and the NZP CSI-RS sequence is obtained by intercepting the sequence generated on the basis of a preset formula according to the maximum downlink available bandwidth according to the position of the virtual bandwidth of the NZP CSI-RS at the maximum downlink available bandwidth.

Wherein a preset formula based on which the NZP CSI-RS sequence is generated is as follows:

wherein n is_sThe slot number in the radio frame, l the symbol number in the slot, c (-) a predefined pseudo-random sequence,

and numbering a maximum Resource Block (RB for short) corresponding to the downlink transmission bandwidth. Wherein, at the beginning of each symbol, the pseudo-random sequence c (-) is initialized according to:

wherein, when a common Cyclic Prefix (CP) is used, N_CPWhen extended CP is used, N is 1_CP＝0；

Is the number of CSI-RS.

When the NZP CSI-RS sequence is generated in the first mode

Replacing the number of RBs corresponding to the virtual bandwidth; and when the NZP CSI-RS sequence is generated in the second mode or the third mode, intercepting the NZP CSI-RS sequence according to the RB position of the virtual bandwidth in the downlink transmission bandwidth or the downlink maximum available bandwidth.

Further, when the CSI-RS is the NZP CSI-RS, the UE receives the transmission power information corresponding to the NZP CSI-RS on the virtual bandwidth corresponding to the virtual bandwidth configuration information. The transmission power information corresponding to different NZP CSI-RSs may be independent, and the transmission power information may be included in the virtual bandwidth configuration information or may be independent of the virtual bandwidth configuration information. And at this time, when the NZP CSI-RS is transmitted to the UE by the base station, transmitting the NZP CSI-RS by using corresponding transmission power information only on a virtual bandwidth corresponding to the NZP CSI-RS. For example, one NZP CSI-RS may correspond to a transmission power of a dBm, and another NZP CSI-RS may correspond to a transmission power of B dBm, where a and B may be completely independent.

Specifically, on the basis of the foregoing embodiment, preferably, the performing, by the UE, signal processing according to the virtual bandwidth indicated by the virtual bandwidth configuration information includes: and the UE carries out RRM measurement according to the virtual bandwidth of the CSI-RS. Wherein the RRM measurements comprise: at least one of Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), and Received Signal Strength Indicator (RSSI). Optionally, the UE reports a result of RRM measurement according to the virtual bandwidth of the CSI-RS to the base station.

In this embodiment, a virtual bandwidth is configured for each CSI-RS through at least one piece of virtual bandwidth configuration information, so that different CSI-RS correspond to different virtual bandwidths, and the virtual bandwidths are independent from each other, thereby enabling the CSI-RS to be transmitted on different virtual bandwidths, without requiring all CSI-RS to be transmitted on the entire downlink transmission bandwidth or the maximum downlink available bandwidth, thereby reducing the overhead of a reference signal, and generating a CSI-RS sequence without generating a CSI-RS sequence of a fixed length only according to the entire downlink transmission bandwidth or the maximum downlink available bandwidth, but according to the configured virtual bandwidth; in addition, the RRM measurement and other signal processing are only required to be carried out on the corresponding virtual bandwidth, so that the complexity of measurement feedback is reduced.

EXAMPLE five

An embodiment of the present invention provides a bandwidth configuration method, which is another specific application scenario based on the foregoing embodiment, and is specifically configured to configure a virtual bandwidth for channel state information interference measurement (CSI-IM).

In this embodiment, the receiving, by the UE, at least one piece of virtual bandwidth configuration information includes: the UE receives virtual bandwidth configuration information corresponding to each CSI-IM in at least one CSI-IM.

When the base station configures the CSI-IM for the UE, each CSI-IM may correspond to one virtual bandwidth configuration information, and the virtual bandwidth configuration information corresponding to different CSI-IMs may be independent. These CSI-IMs may be used for different Coordinated Multi Point Transmission/Reception (CoMP) Transmission hypotheses.

When there are at least two CSI-IMs, the virtual bandwidths of any two CSI-IMs may overlap. When the virtual bandwidths of the two CSI-IMs are overlapped, Resource Elements (REs) corresponding to the two CSI-IMs may be overlapped in an overlapping region, or the two CSI-IMs may share some REs.

In this embodiment, each CSI-IM corresponds to virtual bandwidth configuration information that is independent of each other, so that each cell uses its corresponding virtual bandwidth when performing interference coordination between cells, and thus, the UE does not necessarily need to measure interference or channel state information according to the entire downlink transmission bandwidth or the maximum downlink available bandwidth, but can measure interference or channel state information according to different virtual bandwidths, and the bandwidth measurement result of the UE can accurately reflect the actual channel state, and the actual cost of the UE measurement feedback is close to the cost actually required, thereby reducing the complexity of the UE and improving the measurement accuracy.

EXAMPLE six

An embodiment of the present invention provides a bandwidth configuration method, which is based on the foregoing embodiment, and is specifically configured to configure a virtual bandwidth for a Channel state information Process (CSI-Process for short). Each CSI process corresponds to a combination of an NZP CSI-RS and a CSI-IM, the UE measures a channel on the NZP CSI-RS, measures interference on the CSI-IM, and then calculates CSI information corresponding to the corresponding CSI process according to the measured channel and the interference.

In this embodiment, the at least one piece of virtual bandwidth configuration information is virtual bandwidth configuration information corresponding to each CSI process in the at least one CSI process, and performing, by the UE, signal processing according to at least one virtual bandwidth in the virtual bandwidth indicated by the at least one piece of virtual bandwidth configuration information includes: and the UE performs measurement or measurement feedback of the CSI according to the virtual bandwidth configuration information corresponding to each CSI process. The at least one CSI process may include at least two CSI processes, that is, the at least one piece of virtual bandwidth configuration information may be virtual bandwidth configuration information corresponding to each CSI process in the at least two CSI processes, where the virtual bandwidth corresponding to each CSI process in the at least two CSI processes may be configured independently.

Optionally, the starting position of the virtual bandwidth is a starting position of any one of the sub-bands divided according to the maximum available downlink bandwidth or the downlink transmission bandwidth; and/or the size of the virtual bandwidth is equal to the sum of the sizes of at least one sub-band in each sub-band divided according to the downlink maximum available bandwidth or the downlink transmission bandwidth. That is, the starting position and size of the virtual bandwidth may be satisfied at the same time, or only one of them may be satisfied.

Optionally, the virtual bandwidth corresponding to the CSI process covers a range of a virtual bandwidth of the NZP CSI-RS and/or the CSI-IM corresponding to the CSI process, or the virtual bandwidth configuration information corresponding to the CSI process is the virtual bandwidth configuration information of the NZP CSI-RS and/or the CSI-IM corresponding to the CSI process.

Optionally, the UE determines at least one of a subband size and a subband set size of the CSI process according to the virtual bandwidth or the maximum downlink available bandwidth or the downlink transmission bandwidth corresponding to the CSI process, and then determines the number of subbands corresponding to the CSI process according to the subband size, and/or determines the number of subband sets corresponding to the CSI process according to the subband set size, where when the subband size corresponding to the CSI process is determined according to the virtual bandwidth of the CSI process, the subband size may be any value, or may be notified or predefined by the base station; when the size of the subband set corresponding to the CSI process is determined according to the virtual bandwidth of the CSI process, the size of the subband set can be any value, or can be notified or predefined by the base station; or the UE determines at least one of the number of subbands and the number of subband sets of the CSI process according to the virtual bandwidth corresponding to the CSI process, and then determines the size of a subband according to the number of subbands corresponding to the CSI process, and/or determines the size of a subband set according to the number of subband sets corresponding to the CSI process, where when the number of subbands corresponding to the CSI process is determined according to the virtual bandwidth of the CSI process, the number of subbands may be any value, and may be notified or predefined by a base station; when the number of subband sets corresponding to the CSI process is determined according to the virtual bandwidth of the CSI process, the number of subband sets may be any value, and may be notified or predefined by the base station. Optionally, when the UE receives virtual bandwidth configuration information of at least two CSI processes, the subband sizes of the at least two CSI processes are independent.

Optionally, the performing, by the UE, signal processing according to at least one virtual bandwidth in the virtual bandwidths indicated by the at least one virtual bandwidth configuration information includes: and the UE feeds back the broadband Channel State Information (CSI) corresponding to the CSI process according to the virtual bandwidth measurement corresponding to the CSI process.

In this embodiment, relatively independent virtual bandwidths are configured for different CSI-processes, so that the UE performs interference measurement on the virtual bandwidth according to the CSI-IM corresponding to the CSI-Process configured by the base station and performs channel measurement on the virtual bandwidth according to the NZP CSI-RS corresponding to the CSI-Process. The feedback CSI is measured on different virtual bandwidths, instead of the whole downlink maximum available bandwidth or downlink transmission bandwidth, so that the complexity of the UE can be reduced, and the flexibility of measuring feedback and receiving data by the UE is improved.

EXAMPLE seven

The seventh embodiment of the present invention provides a bandwidth configuration method, which is based on the foregoing embodiments and is further specifically applied to a specific application scenario, and is specifically used for configuring a virtual bandwidth for resource allocation.

In this embodiment, the virtual bandwidth configuration information is used to indicate a virtual bandwidth corresponding to resource allocation for the UE, where the number of virtual bandwidths corresponding to resource allocation for the UE is at least one. And when the UE is configured with the virtual bandwidth corresponding to the resource allocation, only the resources on the corresponding virtual bandwidth are allocated to the UE.

Optionally, in all embodiments, the virtual bandwidth corresponding to resource allocation for the UE and the virtual bandwidth corresponding to the CSI process are configured independently. The resource allocated for the UE once is a resource on at least one virtual bandwidth, that is, when one virtual bandwidth for resource allocation is configured for the UE, only the resource on the virtual bandwidth is allocated to the UE, and when two or more virtual bandwidths for resource allocation are configured for the UE, the resource allocated to the UE may be any resource or any combination of resources on the two or more virtual bandwidths for resource allocation.

Optionally, when the bandwidth corresponding to one resource allocation includes at least two virtual bandwidths, the size of the resource block set and the number of the resource block sets corresponding to the one resource allocation are determined according to each of the at least two virtual bandwidths, or determined according to the sum of the sizes of the at least two virtual bandwidths, or determined according to the downlink transmission bandwidth or the downlink maximum available bandwidth. Wherein, the number of RBs corresponding to each resource block set may be different. For example, the bandwidth corresponding to the primary resource allocation includes two non-overlapping virtual bandwidths, the first virtual bandwidth includes 2 resource block sets, and the size of each virtual bandwidth is 3 RBs, and the second virtual bandwidth includes 2 resource block sets, and the size of each virtual bandwidth is 6 RBs. Then the sub-resource allocation has a total of 4 resource block sets determined according to each virtual bandwidth.

Further, as shown in fig. 4, after the UE receives at least one piece of virtual bandwidth configuration information, the method may further include:

step 401, the UE receives resource allocation information.

Wherein the resource allocation information includes index information of at least one virtual bandwidth corresponding to the resource allocated to the UE. Wherein the at least one comprises at least two.

Specifically, the UE receives Downlink Control Information (DCI), where the DCI is carried on the PDCCH or ePDCCH, and the DCI includes a resourceThe resource allocation information is configured according to the virtual bandwidth, for example, the number of PRBs corresponding to the virtual bandwidth is used as the maximum available number of PRBs for resource allocation

And the UE receives the channels indicated by the DCI such as the PDSCH on the virtual bandwidth according to the resource allocation.

Optionally, after receiving at least one piece of virtual bandwidth configuration information, the UE may further include: the UE receives resource allocation information, wherein the length of the resource allocation information is determined by the size of the virtual bandwidth. Specifically, when allocating resources to the UE, the base station determines the length of the resource allocation information according to the size of at least one virtual bandwidth used for performing resource allocation to the UE this time, and when receiving the resource allocation information, the UE also determines the length of the resource allocation information according to the size of at least one virtual bandwidth used for performing resource allocation to the UE this time. For example, the downlink transmission bandwidth is 20MHz, and the virtual bandwidth size for resource allocation is 5MHz, then the length of the resource allocation information for indicating resource allocation on the virtual bandwidth is determined according to the virtual bandwidth size, for example, there are M resource block sets on the virtual bandwidth, where M is a positive integer greater than zero, and then the length of the resource allocation information may be M bits (bits). The actual method of determining the length of the resource allocation information according to the virtual bandwidth is not limited thereto. The at least one virtual bandwidth for performing resource allocation for the UE may be obtained by the base station by semi-statically notifying the UE, or by the UE through blind detection, or by the UE through detecting the index information of the at least one virtual bandwidth for performing resource allocation for the UE.

Optionally, the type of the virtual bandwidth for resource allocation for the UE is independent from the type of resource allocation, for example, the virtual bandwidth is centralized, and the resource allocation may be centralized or distributed.

Optionally, in all embodiments, when the UE receives at least two pieces of virtual bandwidth configuration information, the method further includes: and the UE receives scheduling information of crossing virtual bandwidths, wherein the scheduling information comprises index information used for indicating the virtual bandwidth corresponding to the resource scheduled by the scheduling information so as to determine the virtual bandwidth corresponding to the resource allocation. For example, a Carrier Indicator Field (CIF) is reused or a new bit is used to indicate a virtual bandwidth corresponding to the scheduling information. Optionally, after determining the number of resource block sets corresponding to one resource allocation, the length of the index information corresponding to the resource allocation is determined according to the number of the corresponding resource block sets.

In this embodiment, the base station configures at least one piece of virtual bandwidth configuration information for the UE, and performs resource allocation for the UE through the virtual bandwidth indicated by the at least one piece of virtual bandwidth configuration information, and does not perform resource allocation only according to the downlink transmission bandwidth or the downlink maximum available bandwidth any more, so that signaling overhead of resource allocation can be saved. And resource scheduling with more flexible resource block size can be performed for the UE.

Optionally, in all embodiments, in a scenario, the bandwidth configuration method may further include: and the UE receives third configuration information of rate matching and quasi co-sited hypothesis corresponding to the virtual bandwidth. The third configuration information may be set in the virtual bandwidth configuration information, or may be separately configured.

Specifically, for each virtual bandwidth used by resource allocation, the base station configures the UE with third configuration information of at least one rate matching and quasi co-sited assumption through physical layer signaling and/or higher layer signaling. The third configuration information of the rate matching and quasi co-sited hypothesis corresponding to each virtual bandwidth is configured independently, for example, the number and specific configuration information of the third configuration information of the rate matching and quasi co-sited hypothesis may be independent. For example, the base station configures, for the UE, third configuration information of 4 rate matching and quasi co-sited hypotheses for one of the virtual bandwidths, and configures third configuration information of 2 rate matching and quasi co-sited hypotheses for another virtual bandwidth, where the third configuration information of the rate matching and quasi co-sited hypotheses for the two virtual bandwidths are independent.

When one virtual bandwidth includes at least two discontinuous bandwidth parts, the base station may configure third configuration information of rate matching and quasi co-sited assumption for the UE for each bandwidth part. The third configuration information of the rate matching and quasi co-sited hypothesis corresponding to each virtual bandwidth portion is independently configured.

When the UE receives scheduling information, the UE determines the rate matching and quasi co-sited hypothesis corresponding to the virtual bandwidth according to the virtual bandwidth corresponding to the resource scheduled in the scheduling information, and selects the rate matching and quasi co-sited hypothesis used by the scheduling according to the rate matching and quasi co-sited hypothesis indication information in the scheduling information.

Optionally, in all embodiments, in another scenario, the bandwidth configuration method may further include: the UE receives fourth configuration information of a quasi co-sited hypothesis corresponding to the virtual bandwidth, where the fourth configuration information may be set in the virtual bandwidth configuration information or may be separately configured. The fourth configuration information includes at least one of the following information: port number of the CRS, subframe position information of the CRS, position information of a first symbol of the PDSCH, Multicast/Broadcast Single Frequency network (MBSFN) configuration information in the virtual bandwidth, and ZP CSI-RS configuration information in the virtual bandwidth.

Optionally, in all embodiments, in another scenario, the bandwidth configuration method may further include: the UE receives fifth configuration information assumed to be quasi co-sited corresponding to the virtual bandwidth, where the fifth configuration information may be set in the virtual bandwidth configuration information or may be separately configured. The fifth configuration information includes at least one of the following information: configuration information of a CSI-RS quasi co-located with a Demodulation Reference Signal (DM RS) and configuration information of a CRS quasi co-located with the CSI-RS.

Further, on the basis of the above embodiment, the reference signal used for the quasi co-sited hypothesis and/or the rate matching is a reference signal outside the virtual bandwidth or a reference signal whose transmission bandwidth is greater than the virtual bandwidth or a reference signal whose transmission bandwidth crosses the virtual bandwidth.

In the embodiment of the present invention, the base station may configure, for the UE, rate matching and/or quasi co-sited hypothesis information corresponding to each virtual bandwidth, so that different virtual bandwidths may have different rate matching and/or quasi co-sited hypotheses, the UE and the base station may achieve consistent understanding for the rate matching and/or quasi co-sited hypothesis on each different node and bandwidth, and the rate matching and/or quasi co-sited hypothesis configuration may be very flexible, thereby overcoming a limitation that all locations on a downlink transmission bandwidth must use the same configuration, thereby saving transmission overhead and increasing flexibility.

Optionally, the bandwidth configuration method may further include: the UE receives sixth configuration information, where the sixth configuration information is used to indicate transmission resources of a Physical Uplink Control Channel (PUCCH) Acknowledgement signal (ACK)/negative Acknowledgement signal (NACK) corresponding to the virtual bandwidth. Wherein the sixth configuration information may be a parameter indicating transmission resources of PUCCH ACK/NACK corresponding to the virtual bandwidth

And/or Hybrid Automatic Repeat Request Acknowledgement signal resource offset (HARQ-ACK resource offset for short), where the UE determines, according to the sixth configuration information, a transmission resource of PUCCH ACK/NACK corresponding to the virtual bandwidth. By configuring resources for transmitting PUCCH ACK/NACK corresponding to the virtual bandwidth for different virtual bandwidths, the limitation that only one resource for transmitting PUCCH ACK/NACK can be configured on downlink transmission bandwidth or downlink maximum available bandwidth can be overcome, so that the flexibility of configuring the resources for transmitting PUCCH ACK/NACK corresponding to each virtual bandwidth can be increased under the condition of configuring the virtual bandwidth, and the probability of collision of the transmission resources corresponding to different ACK/NACK can be reduced.

Example eight

Corresponding to the above method embodiment, the embodiment of the present invention further provides the following embodiments of a bandwidth configuration method.

Fig. 5 is a schematic flowchart of a bandwidth configuration method according to an eighth embodiment of the present invention. As shown in fig. 5, the present embodiment is performed by a bandwidth configuration apparatus configured in a base station, and the method includes:

step 501, the base station determines at least one virtual bandwidth for signal reception and/or signal processing by the UE.

Step 502, the base station sends at least one piece of virtual bandwidth configuration information to the UE.

Specifically, the at least one piece of virtual bandwidth configuration information is used to instruct the UE to perform signal reception and/or signal processing according to at least one piece of virtual bandwidth in the virtual bandwidth indicated by the at least one piece of virtual bandwidth configuration information, where each piece of virtual bandwidth is a downlink maximum available bandwidth or a part or all of a downlink transmission bandwidth, and the downlink maximum available bandwidth is a maximum bandwidth available for downlink transmission. The downlink transmission bandwidth includes a downlink system bandwidth configured by a base station through a Master Information Block (MIB). Specifically, the virtual bandwidths indicated by the virtual bandwidth configuration information may be mutually independent, and attribute information such as the size, the position information, the type, the downlink transmission power information, and the like of each virtual bandwidth may be configured independently and is independent of other virtual bandwidths. Or, for a plurality of virtual bandwidths, at least one of attribute information such as size, location information, type, and downlink transmission power information of the corresponding virtual bandwidth is jointly configured or predefined.

According to the embodiment of the invention, by configuring at least one piece of independent virtual bandwidth configuration information, signal receiving and/or signal processing are not required to be carried out according to a fixed bandwidth, so that the overhead and the complexity of signal receiving and signal processing are reduced, and the overhead and the complexity of signal receiving and processing feedback can be flexibly controlled.

Optionally, the at least one piece of virtual bandwidth configuration information includes virtual bandwidth configuration information corresponding to different subframe sets, that is, for each subframe set, the virtual bandwidth configuration information may be configured independently, so that the virtual bandwidth configuration information indicates a virtual bandwidth on the subframe set.

Optionally, the at least one virtual bandwidth configuration information may be at least two virtual bandwidth configuration information, where the virtual bandwidth configuration information is used to indicate a configuration of a virtual bandwidth, and the virtual bandwidth configuration information and the virtual bandwidth are in a one-to-one relationship, that is, one virtual bandwidth configuration information indicates a configuration of a virtual bandwidth. Correspondingly, the UE receiving the virtual bandwidth configuration information includes:

Specifically, the virtual bandwidth configuration information may be carried in physical layer signaling and/or higher layer signaling, and each of the virtual bandwidth configuration information is configured independently. For example, the virtual bandwidth configuration information is carried only through physical layer signaling or only through higher layer signaling, or a plurality of candidates of the virtual bandwidth configuration information are carried through higher layer signaling, and one of the plurality of candidates of the virtual bandwidth configuration information is configured through physical layer signaling as actually used virtual bandwidth configuration information.

Example nine

Fig. 6 is a flowchart illustrating a bandwidth configuration method according to a ninth embodiment of the present invention. As shown in fig. 6, the bandwidth configuration method may further include the following steps:

step 601, the base station generates a signal for the UE according to the virtual bandwidth indicated by the at least one piece of virtual bandwidth configuration information and performs signal transmission.

Specifically, the sequence of the signal may be generated based on a preset formula according to the virtual bandwidth, or may also be generated based on a preset formula according to the maximum downlink available bandwidth or the downlink transmission bandwidth, and may be intercepted according to the position of the virtual bandwidth in the maximum downlink available bandwidth or the downlink transmission bandwidth, so that the base station may flexibly configure the transmission bandwidth of the signal and the bandwidth of measurement feedback required by the UE, and the signal reception and/or signal processing is performed according to a fixed bandwidth, which saves the overhead of the reference signal and the complexity of the measurement feedback.

Example ten

In the above embodiment, step 502, the base station sends at least one piece of virtual bandwidth configuration information to the UE. Wherein the at least one comprises at least two. When the UE receives at least two pieces of virtual bandwidth configuration information, as shown in fig. 7, the method may include:

step 701, the base station determines at least two virtual bandwidths for the UE to perform signal reception and/or signal processing.

Step 702, the base station sends at least two pieces of virtual bandwidth configuration information to the UE.

Optionally, the method may further include the following steps:

step 703, the base station sends first configuration information to the UE.

Step 704, the base station generates a signal for the UE according to the virtual bandwidths indicated by the at least two pieces of virtual bandwidth configuration information and performs signal transmission.

Wherein step 703 and step 704 are optional. After step 702 is executed, step 703 and step 704 may be executed, or step 704 may be executed directly, which is not limited herein.

According to the embodiment, the base station can configure the UE to perform signal reception or signal processing on different virtual bandwidths according to different first configuration information, and the UE does not need to perform signal reception or signal processing on the entire downlink transmission bandwidth or the downlink maximum available bandwidth by using the same first configuration information, so that the UE can be more flexible and the UE processing complexity can be reduced.

EXAMPLE eleven

The eleventh embodiment of the present invention is optimized based on the foregoing embodiment, and as shown in fig. 8, the method may further include:

step 801, the base station sends second configuration information for signal reception and/or signal processing on the virtual bandwidth to the UE.

Wherein the second configuration information is configuration information of the signal or signal processing. The configuration information may be configured independently from the virtual bandwidth configuration information, or may be predefined and sent to the UE through the base station. In addition, the second configuration information may be parameter configuration information such as scrambling code information, port information, time domain parameters, frequency domain parameters, and the like of the signal, and may also be configuration information of signal processing such as channel estimation, signal detection, data demodulation, and the like, which is not limited herein.

Further, in all embodiments of the present invention, the signal reception and/or signal processing comprises at least one of the following signal reception or signal processing: CSI-RS reception, CRS reception, PDCCH search, EPDCCH search, CSI measurement, RRM measurement, CSI feedback, PDSCH reception, PHICH reception, EPHICH reception, PMCH reception, and common signal reception; wherein the common signal reception comprises at least one of: PBCH reception, ePBCH reception, PSS/SSS reception and discovery signal reception, such that for any of the above signal reception or signal processing, the UE may perform reception or processing according to the virtual bandwidth, and the UE may perform different signal reception or signal processing according to different virtual bandwidths, including different channel reception or channel processing.

Further, in all embodiments of the present invention, the virtual bandwidth configuration information includes at least one information of size, location information, type, and downlink transmission power information of the virtual bandwidth, and the at least one information is described as follows:

Preferably, the center frequency position of the virtual bandwidth may be a position of a subcarrier satisfying a positive multiple of 100KHz in a downlink maximum available bandwidth or a downlink transmission bandwidth.

When the virtual bandwidths of the two CSI-RSs are overlapped, the corresponding REs of the two CSI-RSs can be overlapped in an overlapping area, or the two CSI-RSs can share some REs in the overlapping area, or the CSI-RSs with low priority are not transmitted when the corresponding REs of the two CSI-RSs are overlapped in the overlapping area, wherein the priority of the CSI-RSs is predefined, or the priority of the CSI-RSs is implicitly informed, such as the CSI-RSs with low index numbers have high priority, or the priority of the CSI-RSs is informed in a display mode, such as the base station informs the UE of the priority of each CSI-RS.

c. The downlink transmission power information comprises the transmission power of CRS or RCRS. The downlink transmission power information corresponding to the virtual bandwidth may be the same as or different from the downlink transmission power information on the maximum available downlink bandwidth or the downlink transmission bandwidth, for example, the downlink transmission power information on the maximum available downlink bandwidth or the downlink transmission bandwidth is 46dBm, and the downlink transmission power information corresponding to the virtual bandwidth may be 46dBm, or 40dBm, or 23 dBm. The downlink transmission power information may be downlink reference signal transmission power information, for example, CRS transmission power or CSI-RS transmission power. In the embodiment of the invention, the downlink transmitting power on different bandwidths can be set more flexibly.

Further, when the base station sends two or more pieces of virtual bandwidth configuration information to the UE, at least one of the position information, the size, the type, and the downlink transmission power information corresponding to the virtual bandwidth indicated by any two pieces of virtual bandwidth configuration information in the two or more pieces of virtual bandwidth configuration information is different. When the virtual bandwidth configuration information is used to indicate a virtual bandwidth corresponding to at least one signal reception or signal processing, the location information, size, type, and downlink transmission power information of the virtual bandwidth corresponding to different signal reception or signal processing may be configured independently or jointly. The virtual bandwidths corresponding to different signal reception or signal processing may also be the same, and are not limited herein.

Optionally, in all embodiments of the present invention, the sending, by the base station, at least one piece of virtual bandwidth configuration information to the UE includes: and the base station sends at least one piece of virtual bandwidth configuration information carried in a broadcast message signaling or a multicast signaling or a UE dedicated signaling to the UE. The broadcast message signaling, the multicast signaling, or the UE-specific signaling may specifically be physical layer signaling and/or higher layer signaling, and may be only carried by the physical layer signaling, or only carried by the higher layer signaling, or carried by the higher layer signaling, and configure one of multiple candidate virtual bandwidth configuration information as actually used virtual bandwidth configuration information by the physical layer signaling.

When the at least one piece of virtual bandwidth configuration Information is carried in the broadcast signaling, the broadcast signaling is at least one of MIB and System Information Block Type2 (SIB 2); when the at least one piece of virtual bandwidth configuration information is carried in the Multicast signaling, the Multicast signaling includes at least one of a Multimedia Broadcast Multicast Service (MBMS) control signaling and a Multicast signaling that is sent by a primary cell to the UE for indicating configuration information of a secondary cell; when the at least one piece of virtual bandwidth configuration information is carried in the UE-specific signaling, the UE-specific signaling includes at least one of a UE-specific Radio Resource Control (RRC) signaling and a UE-specific signaling sent by the primary cell to the UE for indicating the secondary cell configuration information.

Optionally, in all embodiments of the present invention, the virtual bandwidth configuration information includes information used to indicate whether a common signal and/or a common channel is transmitted on the virtual bandwidth, where the common signal includes at least one of a CRS, a cell-specific CSI-RS, a system information block, a primary synchronization signal, a secondary synchronization signal, and a discovery signal; the common channel includes at least one of a physical broadcast channel, a physical common control channel. Wherein the common signal and/or the common channel may be transmitted over all of the virtual bandwidth or only a part of the virtual bandwidth, such as only one virtual bandwidth. When common signals and/or common channels are transmitted over multiple virtual bandwidths, the common signals and/or common channels transmitted over different virtual bandwidths may have the same or different configurations or parameters. In the embodiment of the invention, the UE can be flexibly configured to detect or receive the common signal and/or the common channel on the virtual bandwidth.

Example twelve

The twelfth embodiment of the present invention provides a bandwidth configuration method, which is a specific application scenario based on the foregoing embodiments, and is specifically configured to configure a virtual bandwidth for CSI-RS.

In this embodiment, the at least one piece of virtual bandwidth configuration information is virtual bandwidth configuration information corresponding to each CSI-RS in at least one CSI-RS, so that the UE receives the corresponding CSI-RS according to at least one virtual bandwidth in the virtual bandwidth indicated by the at least one piece of virtual bandwidth configuration information, where the CSI-RS is an NZP CSI-RS or a ZP CSI-RS. When the number of the CSI-RSs configured by the UE receiving base station is at least two, each CSI-RS can be configured with a virtual bandwidth independently, and the virtual bandwidths of different CSI-RSs can be configured independently or jointly.

the second method comprises the following steps: the NZP CSI-RS sequence is obtained by intercepting a sequence generated on the basis of a preset formula according to downlink transmission bandwidth according to the position of a virtual bandwidth corresponding to the NZP CSI-RS in the downlink transmission bandwidth;

The preset formulas based on which the NZP CSI-RS sequence is generated are formulas (1) and (2), and the symbols in formulas (1) and (2) are as before, which is not described herein again.

Further, when the CSI-RS is an NZP CSI-RS, the bandwidth configuration method may further include: and the base station sends the transmission power information corresponding to the NZP CSI-RS on the virtual bandwidth corresponding to the virtual bandwidth configuration information to the UE. The transmission power information corresponding to different NZP CSI-RSs may be independent, and the transmission power information may be included in the virtual bandwidth configuration information or may be independent of the virtual bandwidth configuration information. And at this time, when the NZP CSI-RS is transmitted to the UE by the base station, transmitting the NZP CSI-RS by using corresponding transmission power information only on a virtual bandwidth corresponding to the NZP CSI-RS. For example, one NZP CSI-RS may correspond to a transmission power of a dBm, and another NZP CSI-RS may correspond to a transmission power of B dBm, where a and B may be completely independent.

Specifically, on the basis of the foregoing embodiment, it is preferable that the base station receives a result of RRM measurement according to the virtual bandwidth of the CSI-RS, which is reported by the UE, where the result includes at least one of RSRP, RSRQ, and RSSI.

EXAMPLE thirteen

A thirteenth embodiment of the present invention provides a bandwidth configuration method, which is another specific application scenario based on the foregoing embodiment, and is specifically configured to configure a virtual bandwidth for CSI-IM.

In this embodiment, the sending, by the base station, at least one piece of virtual bandwidth configuration information to the UE includes: and the base station sends virtual bandwidth configuration information corresponding to each CSI-IM in at least one CSI-IM to the UE.

When the base station configures the CSI-IM for the UE, each CSI-IM may correspond to one virtual bandwidth configuration information, and the virtual bandwidth configuration information corresponding to different CSI-IMs may be independent. These CSI-IMs may be used for different CoMP transmission hypotheses.

When there are at least two CSI-IMs, the virtual bandwidths of any two CSI-IMs may overlap. When the virtual bandwidths of the two CSI-IMs overlap, the REs corresponding to the two CSI-IMs may overlap in the overlapping region, or the two CSI-IMs may share some REs.

In this embodiment, each CSI-IM corresponds to virtual bandwidth configuration information that is independent of each other, so that each cell uses its corresponding virtual bandwidth when performing interference coordination between cells, and thus, the UE may measure interference or channel state information according to different virtual bandwidths without necessarily measuring interference or channel state information according to the entire downlink transmission bandwidth or the maximum downlink available bandwidth, and the bandwidth measurement result of the UE may accurately reflect the actual channel state, and the actual cost of the UE measurement feedback is close to the cost actually required, thereby reducing the complexity of the UE and improving the measurement accuracy.

Example fourteen

A fourteenth embodiment of the present invention provides a bandwidth configuration method, which is based on the foregoing embodiment, and is specifically configured to configure a virtual bandwidth for CSI-Process. Each CSI process corresponds to a combination of an NZP CSI-RS and a CSI-IM, the UE measures a channel on the NZP CSI-RS, measures interference on the CSI-IM, and then calculates CSI information corresponding to the corresponding CSI process according to the measured channel and the interference.

In this embodiment, the sending, by the base station, the at least one piece of virtual bandwidth configuration information to the UE includes: the base station sends virtual bandwidth configuration information corresponding to each CSI process in at least one CSI process to the UE, so that the UE performs measurement or measurement feedback of the CSI according to the virtual bandwidth configuration information corresponding to each CSI process. The at least one CSI process may include at least two CSI processes, that is, the at least one piece of virtual bandwidth configuration information may be virtual bandwidth configuration information corresponding to each CSI process in the at least two CSI processes, where the virtual bandwidth corresponding to each CSI process in the at least two CSI processes may be configured independently.

Optionally, the starting position of the virtual bandwidth is a starting position of any one of the sub-bands divided according to the maximum available downlink bandwidth or the downlink transmission bandwidth; and/or the size of the virtual bandwidth is equal to the sum of the sizes of at least one sub-band in each sub-band divided according to the downlink maximum available bandwidth or the downlink transmission bandwidth. That is, the starting position and the size of the virtual bandwidth may be satisfied at the same time, or may be satisfied with only one of them, which is not limited herein.

Optionally, the base station determines at least one of a subband size and a subband set size of the CSI process according to the virtual bandwidth or the maximum downlink available bandwidth or the downlink transmission bandwidth corresponding to the CSI process, and then determines the number of subbands corresponding to the CSI process according to the subband size, and/or determines the number of subband sets corresponding to the CSI process according to the subband set size, where when the subband size corresponding to the CSI process is determined according to the virtual bandwidth of the CSI process, the subband size may be any value, or the subband size notified to the UE by the base station may be predefined; when the size of the subband set corresponding to the CSI process is determined according to the virtual bandwidth of the CSI process, the size of the subband set may be any value, or may be notified to the UE by the base station or predefined; or the base station determines at least one of the number of subbands and the number of subband sets of the CSI process according to the virtual bandwidth corresponding to the CSI process, and then determines the size of a subband according to the number of subbands corresponding to the CSI process, and/or determines the size of a subband set according to the number of subband sets corresponding to the CSI process, wherein when the number of subbands corresponding to the CSI process is determined according to the virtual bandwidth of the CSI process, the number of subbands may be any value, and may be notified to the UE by the base station or predefined; when the number of subband sets corresponding to a CSI process is determined according to the virtual bandwidth of the CSI process, the number of subband sets may be any value, and may be notified to the UE by the base station or predefined. Optionally, when the UE receives virtual bandwidth configuration information of at least two CSI processes, the subband sizes of the at least two CSI processes are independent.

Optionally, the base station receives wideband channel state information CSI corresponding to the CSI process, which is reported by the UE and measured according to the virtual bandwidth corresponding to the CSI process.

In this embodiment, the base station configures virtual bandwidth configuration information required by relatively independent virtual bandwidths for different CSI-processes, so that the UE performs interference measurement on the virtual bandwidths according to the CSI-IM corresponding to the CSI-Process configured by the base station and performs channel measurement on the virtual bandwidths according to the NZP CSI-RS corresponding to the CSI-Process. The feedback CSI is measured on different virtual bandwidths, instead of the whole downlink maximum available bandwidth or downlink transmission bandwidth, so that the complexity of the UE can be reduced, and the flexibility of measuring feedback and receiving data by the UE is improved.

Example fifteen

An embodiment fifteen of the present invention provides a bandwidth configuration method, which is based on the above embodiment and is further specifically applied to a specific application scenario, and is specifically configured to configure a virtual bandwidth for resource allocation.

In this embodiment, the sending, by the base station, at least one piece of virtual bandwidth configuration information to the UE includes: and the base station sends the virtual bandwidth configuration information to the UE, wherein the virtual bandwidth configuration information is used for indicating the virtual bandwidth corresponding to the resource allocation of the UE, and the number of the virtual bandwidth corresponding to the resource allocation of the UE is at least one. And when the UE is configured with the virtual bandwidth corresponding to the resource allocation, only the resources on the corresponding virtual bandwidth are allocated to the UE.

Optionally, the virtual bandwidth corresponding to resource allocation for the UE and the virtual bandwidth corresponding to the CSI process are configured independently. The resource allocated for the UE once is a resource on at least one virtual bandwidth, that is, when one virtual bandwidth for resource allocation is configured for the UE, only the resource on the virtual bandwidth is allocated to the UE, and when two or more virtual bandwidths for resource allocation are configured for the UE, the resource allocated to the UE may be any resource or any combination of resources on the two or more virtual bandwidths for resource allocation.

Optionally, the resource allocated for the UE once includes a resource on at least one virtual bandwidth. When the bandwidth corresponding to the primary resource allocation comprises at least two virtual bandwidths, the size of the resource block set and the number of the resource block sets corresponding to the primary resource allocation are respectively determined according to each virtual bandwidth of the at least two virtual bandwidths or determined according to the sum of the sizes of the at least two virtual bandwidths or determined according to the downlink transmission bandwidth or the downlink maximum available bandwidth. Wherein, the number of RBs corresponding to each resource block set may be different. For example, the bandwidth corresponding to the primary resource allocation includes two non-overlapping virtual bandwidths, the first virtual bandwidth includes 2 resource block sets, and the size of each virtual bandwidth is 3 RBs, and the second virtual bandwidth includes 2 resource block sets, and the size of each virtual bandwidth is 6 RBs. Then the sub-resource allocation has a total of 4 resource block sets determined according to each virtual bandwidth.

Further, as shown in fig. 9, after the base station sends at least one piece of virtual bandwidth configuration information to the UE, the method may further include:

step 901, the base station sends resource allocation information to the UE.

Wherein the resource allocation information includes index information of at least one virtual bandwidth corresponding to the resource, and the at least one virtual bandwidth includes at least two virtual bandwidths. Specifically, the UE receives DCI, where the DCI is carried in PDCCH or ePDCCH, and the DCI includes resource allocation information, where the resource allocation information is configured according to the virtual bandwidth, for example, the number of PRBs corresponding to the virtual bandwidth is used as the maximum available number of PRBs for resource allocation

Optionally, the length of the resource allocation information is determined by the size of the virtual bandwidth. Specifically, when allocating resources to the UE, the base station determines the length of the resource allocation information according to the size of at least one virtual bandwidth used for performing resource allocation to the UE this time, and when receiving the resource allocation information, the UE also determines the length of the resource allocation information according to the size of at least one virtual bandwidth used for performing resource allocation to the UE this time. For example, the downlink transmission bandwidth is 20MHz, and the virtual bandwidth size for resource allocation is 5MHz, then the length of the resource allocation information for indicating resource allocation on the virtual bandwidth is determined according to the virtual bandwidth size, for example, there are M resource block sets on the virtual bandwidth, where M is a positive integer greater than zero, and then the length of the resource allocation information may be M bits. The actual method of determining the length of the resource allocation information according to the virtual bandwidth is not limited thereto. The at least one virtual bandwidth for performing resource allocation for the UE may be obtained by the base station by semi-statically notifying the UE, or by the UE through blind detection, or by the UE through detecting the index information of the at least one virtual bandwidth for performing resource allocation for the UE.

Optionally, in all embodiments, when the base station sends at least two pieces of virtual bandwidth configuration information to the UE, the method further includes: the base station sends scheduling information of crossing virtual bandwidth to UE, wherein the scheduling information comprises index information which is sent by the base station to the UE and used for indicating the virtual bandwidth corresponding to the scheduling information, so as to determine the virtual bandwidth corresponding to the resource allocation. For example, the virtual bandwidth corresponding to the scheduling information is indicated by reusing the CIF or using a new bit. Optionally, after determining the number of resource block sets corresponding to one resource allocation, the length of the index information corresponding to the resource allocation is determined according to the number of the corresponding resource block sets.

Optionally, in all embodiments, in a scenario, the bandwidth configuration method may further include: and the base station sends third configuration information of rate matching and quasi co-station hypothesis corresponding to the virtual bandwidth to the UE. The third configuration information may be set in the virtual bandwidth configuration information, or may be separately configured.

Optionally, in all embodiments, in another scenario, the bandwidth configuration method may further include: and the base station sends fourth configuration information of a quasi co-sited hypothesis corresponding to the virtual bandwidth to the UE, wherein the fourth configuration information may be set in the virtual bandwidth configuration information or may be separately configured. The fourth configuration information includes at least one of the following information: the number of ports of CRS, the subframe position information of CRS, the position information of the first symbol of PDSCH, MBSFN configuration information in the virtual bandwidth and ZP CSI-RS configuration information in the virtual bandwidth.

Optionally, in all embodiments, in another scenario, the bandwidth configuration method may further include: and the base station sends fifth configuration information assumed to be quasi co-sited corresponding to the virtual bandwidth to the UE, wherein the fifth configuration information may be set in the virtual bandwidth configuration information or may be separately configured. The fifth configuration information includes at least one of the following information: and configuration information of a CSI-RS quasi co-sited with the DM RS and configuration information of a CRS quasi co-sited with the CSI-RS.

Optionally, the bandwidth configuration method may further include: and the base station sends sixth configuration information to the UE, wherein the sixth configuration information is used for indicating the transmission resources of the PUCCH acknowledgement signals/negative acknowledgement signals ACK/NACK corresponding to the virtual bandwidth. Wherein the sixth configuration information may be a parameter indicating transmission resources of PUCCH ACK/NACK corresponding to the virtual bandwidth

And/or HARQ-ACK resource offsetAnd t, the UE determines the transmission resource of PUCCH ACK/NACK corresponding to the virtual bandwidth according to the sixth configuration information. By configuring resources for transmitting PUCCH ACK/NACK corresponding to the virtual bandwidth for different virtual bandwidths, the limitation that only one resource for transmitting PUCCH ACK/NACK can be configured on downlink transmission bandwidth or downlink maximum available bandwidth can be overcome, so that the flexibility of configuring the resources for transmitting PUCCH ACK/NACK corresponding to each virtual bandwidth can be increased under the condition of configuring the virtual bandwidth, and the probability of collision of the transmission resources corresponding to different ACK/NACK can be reduced.

Example sixteen

Fig. 12 is a schematic structural diagram of a bandwidth allocation apparatus according to a sixteenth embodiment of the present invention. The apparatus of this embodiment, which may be configured in a user equipment, may be used to implement the technical solution of the bandwidth configuration method executed by the UE side provided in the embodiment of the present invention. As shown in fig. 12, the apparatus of the present embodiment specifically includes: a receiving module 120 and a processing module 121. Specifically, the receiving module 120 is configured to receive at least one piece of virtual bandwidth configuration information, where the virtual bandwidth configuration information is used to indicate a configuration of a virtual bandwidth; the processing module 121 is configured to perform signal reception and/or signal processing according to at least one virtual bandwidth in the virtual bandwidths indicated by the at least one piece of virtual bandwidth configuration information, where each virtual bandwidth is a part or all of a downlink maximum available bandwidth or a downlink transmission bandwidth, and the downlink maximum available bandwidth is a maximum bandwidth available for downlink transmission.

The device of this embodiment, which implements the technical solution of the bandwidth configuration method provided by the embodiment of the present invention by using the above modules, has corresponding functional modules, and the implementation principle and technical effect are similar, and are not described herein again. The functional modules in the device according to the embodiment of the present invention may be implemented by software, or may also be implemented by hardware, or by a combination of hardware and software.

Optionally, the processing module 121 is specifically configured to perform signal reception or signal processing on each of all virtual bandwidths corresponding to the at least one piece of virtual bandwidth configuration information.

On the basis of the foregoing embodiment, if the receiving module 120 is specifically configured to receive at least two pieces of virtual bandwidth configuration information, the receiving module 120 may be further configured to receive first configuration information, where the first configuration information is used to instruct the processing module 121 to perform signal reception or signal processing according to a virtual bandwidth corresponding to at least one piece of virtual bandwidth configuration information in the at least two pieces of virtual bandwidth configuration information. At this time, the processing module 121 is configured to perform signal reception and/or signal processing according to at least one of the virtual bandwidths indicated by the at least two pieces of virtual bandwidth configuration information.

Optionally, the receiving module 120 may be further configured to receive second configuration information for performing signal reception and/or signal processing on the virtual bandwidth, where the second configuration information is configuration information of the signal or signal processing.

Optionally, the virtual bandwidth configuration information is used to instruct the processing module 121 to perform at least one signal reception or signal processing on each of the virtual bandwidths corresponding to the at least one virtual bandwidth configuration information.

Optionally, on the basis of the above, the signal receiving and/or signal processing comprises at least one of the following signal receiving or signal processing: CSI-RS receiving, CRS receiving, PDCCH searching, EPDCCH searching, CSI measuring, CSI feedback, PDSCH receiving, PHICH receiving, EPHICH receiving, PMCH receiving and common signal receiving; wherein the common signal reception comprises at least one of: PBCH reception, ePBCH reception, PSS/SSS reception, and discovery signal reception.

Optionally, the virtual bandwidth configuration information includes at least one of size, location information, type, and downlink transmission power information of the virtual bandwidth.

Optionally, the location information of the virtual bandwidth includes starting location information of the virtual bandwidth or center frequency information of the virtual bandwidth, where the starting location of the virtual bandwidth is a starting location of any one resource block set in each resource block set divided according to a maximum downlink available bandwidth or a downlink transmission bandwidth.

Optionally, the size of the virtual bandwidth is equal to the sum of the sizes of at least one resource block set in each resource block set divided according to the downlink maximum available bandwidth or the downlink transmission bandwidth, or the size of the virtual bandwidth is predefined.

Optionally, the downlink transmission power information includes a CRS or a transmission power of a simplified cell-specific reference signal RCRS.

Optionally, the type of the virtual bandwidth is at least one of a centralized virtual bandwidth, a non-continuous virtual bandwidth, and a distributed virtual bandwidth.

Further, when the receiving module 120 is specifically configured to receive at least two pieces of virtual bandwidth configuration information, at least one of position information, size, type, and downlink transmission power information corresponding to virtual bandwidths indicated by any two pieces of virtual bandwidth configuration information in the at least two pieces of virtual bandwidth configuration information is different.

Optionally, the receiving module 120 is specifically configured to receive at least one piece of virtual bandwidth configuration information carried in a broadcast message signaling or a multicast signaling or a UE-specific signaling.

Optionally, the virtual bandwidth configuration information includes information indicating whether a common signal and/or a common channel is transmitted on the virtual bandwidth, wherein the common signal includes at least one of a CRS, a cell-specific CSI-RS, a system information block, a primary synchronization signal, a secondary synchronization signal, and a discovery signal; the common channel includes at least one of a physical broadcast channel and a common control channel.

Example seventeen

The embodiment of the invention provides a bandwidth configuration device, which is particularly used for configuring a virtual bandwidth for CSI-RS.

In this embodiment, the at least one piece of virtual bandwidth configuration information is virtual bandwidth configuration information corresponding to each CSI-RS in the at least one CSI-RS, and the processing module may be specifically configured to receive the corresponding CSI-RS according to the configured virtual bandwidth, where the CSI-RS is an NZP CSI-RS or a ZP CSI-RS.

Further, when the CSI-RS is an NZP CSI-RS, the sequence of the NZP CSI-RS is generated based on a preset formula according to a virtual bandwidth corresponding to the NZP CSI-RS; or the NZP CSI-RS sequence is obtained by intercepting a sequence generated based on a preset formula according to the downlink transmission bandwidth according to the position of the virtual bandwidth corresponding to the NZP CSI-RS in the downlink transmission bandwidth; or the NZP CSI-RS sequence is obtained by intercepting the sequence generated on the basis of a preset formula according to the maximum downlink available bandwidth according to the position of the virtual bandwidth of the NZP CSI-RS at the maximum downlink available bandwidth.

Optionally, the processing module may be specifically configured to perform RRM measurement according to the virtual bandwidth of the CSI-RS.

Optionally, when the CSI-RS is an NZP CSI-RS, the processing module may be further configured to receive transmission power information corresponding to the NZP CSI-RS on a virtual bandwidth corresponding to the virtual bandwidth configuration information.

In the apparatus of this embodiment, the above modules are used to implement the technical solution of the bandwidth configuration method provided in the embodiment of the present invention, and the implementation principle and the technical effect are similar, which are not described herein again.

Further, the bandwidth configuration apparatus provided in the embodiment of the present invention may also be applied to an application scenario of configuring a virtual bandwidth for CSI-IM. In this application scenario, the receiving module may be specifically configured to receive virtual bandwidth configuration information corresponding to each CSI-IM in at least one CSI-IM.

Optionally, the bandwidth configuration apparatus provided in the embodiment of the present invention may also be applied to an application scenario in which a virtual bandwidth is configured for a CSI process. In this application scenario, the at least one piece of virtual bandwidth configuration information is virtual bandwidth configuration information corresponding to each CSI process in at least one CSI process, and the processing module may be further specifically configured to perform measurement or measurement feedback on the CSI according to the virtual bandwidth configuration information corresponding to each CSI process.

If the bandwidth configuration device is applied to an application scenario for configuring a virtual bandwidth for a CSI process, optionally, the start position of the virtual bandwidth is the start position of any one of the sub-bands divided according to the maximum downlink available bandwidth or the downlink transmission bandwidth; and/or the size of the virtual bandwidth is equal to the sum of the sizes of at least one sub-band in each sub-band divided according to the downlink maximum available bandwidth or the downlink transmission bandwidth.

Optionally, the virtual bandwidth corresponding to the CSI process covers a range of a virtual bandwidth of an NZP CSI-RS and/or a CSI-IM corresponding to the CSI process, or the virtual bandwidth configuration information corresponding to the CSI process is the virtual bandwidth configuration information of the NZP CSI-RS and/or the CSI-IM corresponding to the CSI process.

Optionally, the bandwidth configuration apparatus provided in the embodiment of the present invention may also be applied to an application scenario in which a virtual bandwidth is configured for resource allocation. In the application scenario, the virtual bandwidth configuration information is used to indicate a virtual bandwidth corresponding to resource allocation for the UE, where the number of virtual bandwidths corresponding to resource allocation for the UE is at least one.

If the bandwidth configuration device is applied to an application scenario in which a virtual bandwidth is configured for a CSI process, optionally, the virtual bandwidth corresponding to resource allocation for the UE and the virtual bandwidth corresponding to the CSI process are configured independently.

Optionally, the resource allocated for the UE once includes a resource on at least one virtual bandwidth.

Optionally, the receiving module may be further configured to receive resource allocation information, where the resource allocation information includes index information of at least one virtual bandwidth corresponding to a resource allocated to the UE. Optionally, the length of the resource allocation information is determined by the size of the virtual bandwidth.

Optionally, when the receiving module receives at least two pieces of virtual bandwidth configuration information, the receiving module may be further configured to receive scheduling information spanning virtual bandwidths, where the scheduling information includes index information used to indicate a virtual bandwidth corresponding to a resource scheduled by the scheduling information.

Optionally, the size of the resource block set in the virtual bandwidth is determined according to the virtual bandwidth or the maximum downlink available bandwidth or the downlink transmission bandwidth.

Optionally, in all embodiments, in a scenario, the receiving module may be further configured to receive third configuration information of rate matching and quasi co-sited assumption corresponding to the virtual bandwidth.

Optionally, in all embodiments, in another scenario, the receiving module may be further configured to receive fourth configuration information of a quasi co-sited hypothesis corresponding to the virtual bandwidth, where the fourth configuration information includes at least one of the following information: the number of ports of CRS, the subframe position information of CRS, the position information of the first symbol of PDSCH, MBSFN configuration information in the virtual bandwidth and ZP CSI-RS configuration information in the virtual bandwidth.

Optionally, in all embodiments, in another scenario, the receiving module may be further configured to receive fifth configuration information of a quasi co-sited hypothesis corresponding to the virtual bandwidth, where the fifth configuration information includes at least one of the following information: and configuration information of a CSI-RS quasi co-sited with the DM RS and configuration information of a CRS quasi co-sited with the CSI-RS.

Further, the reference signal used for the quasi co-sited hypothesis and/or the rate matching is a reference signal outside the virtual bandwidth or a reference signal with a transmission bandwidth larger than the virtual bandwidth or a reference signal with a transmission bandwidth crossing the virtual bandwidth. Optionally, the receiving module may be further configured to receive sixth configuration information, where the sixth configuration information is used to indicate a transmission resource of a PUCCH ACK/NACK corresponding to the virtual bandwidth.

EXAMPLE eighteen

Fig. 13 is a schematic structural diagram of a bandwidth allocation apparatus according to an eighteenth embodiment of the present invention. The apparatus of this embodiment, configured in a base station, may be configured to implement the technical solution of the bandwidth configuration method executed by the base station side provided in the embodiment of the present invention.

As shown in fig. 13, the apparatus of the present embodiment specifically includes: a determination module 130 and a sending module 131. Wherein the determining module 130 is configured to determine at least one virtual bandwidth for signal reception and/or signal processing by the user equipment UE; the sending module 131 is configured to send at least one piece of virtual bandwidth configuration information to the UE to instruct the UE to perform signal reception and/or signal processing according to at least one piece of virtual bandwidth indicated by the at least one piece of virtual bandwidth configuration information, where each piece of virtual bandwidth is a part or all of a downlink maximum available bandwidth or a downlink transmission bandwidth, and the downlink maximum available bandwidth is a maximum bandwidth available for downlink transmission.

Optionally, the sending module 131 is specifically configured to send at least two pieces of virtual bandwidth configuration information to the UE, and then the sending module 131 may be further configured to send first configuration information to the UE, where the first configuration information is used to instruct the UE to perform signal reception or signal processing according to a virtual bandwidth corresponding to at least one piece of virtual bandwidth configuration information in the at least two pieces of virtual bandwidth configuration information.

Optionally, the sending module 131 may be further configured to send, to the UE, second configuration information for performing signal reception and/or signal processing on the virtual bandwidth, where the second configuration information is configuration information of the signal or signal processing.

Optionally, the virtual bandwidth configuration information is used to instruct the UE to perform at least one signal reception or signal processing on each of the virtual bandwidths corresponding to the at least one virtual bandwidth configuration information.

Optionally, the signal reception and/or signal processing comprises at least one of the following signal reception or signal processing: CSI-RS reception, CRS reception, PDCCH search, EPDCCH search, CSI measurement, RRM measurement, CSI feedback, PDSCH reception, PHICH reception, EPHICH reception, PMCH reception, and common signal reception; wherein the common signal reception comprises at least one of: PBCH reception, ePBCH reception, PSS/SSS reception, and discovery signal reception.

Optionally, when the sending module 131 sends at least two pieces of virtual bandwidth configuration information to the UE, at least one of the position information, the size, the type, and the downlink transmission power information corresponding to the virtual bandwidth indicated by any two pieces of virtual bandwidth configuration information in the at least two pieces of virtual bandwidth configuration information is different.

Optionally, the sending module 131 may be further specifically configured to send at least one piece of virtual bandwidth configuration information carried in a broadcast message signaling or a multicast signaling or a UE-specific signaling to the UE.

Optionally, the virtual bandwidth configuration information includes information indicating whether a common signal and/or a common channel is transmitted on the virtual bandwidth, wherein the common signal includes at least one of a CRS, a cell-specific CSI-RS, a system information block, a primary synchronization signal, a secondary synchronization signal, and a discovery signal; the common channel includes at least one of a physical broadcast channel and a physical common control channel.

Example nineteen

The embodiment of the invention is based on the above embodiment, and the virtual bandwidth configuration device is respectively used in different application scenes.

In a specific application scenario, the bandwidth configuration apparatus is configured to configure a virtual bandwidth for the CSI-RS. In this application scenario, the sending module may be specifically configured to send, to the UE, virtual bandwidth configuration information corresponding to each CSI-RS in at least one CSI-RS, so that the UE receives the corresponding CSI-RS according to at least one virtual bandwidth in the virtual bandwidth indicated by the at least one virtual bandwidth configuration information, where the CSI-RS is an NZP CSI-RS or a ZP CSI-RS.

Optionally, when the CSI-RS is an NZP CSI-RS, the sequence of the NZP CSI-RS is generated based on a preset formula according to a virtual bandwidth corresponding to the NZP CSI-RS; or the NZP CSI-RS sequence is obtained by intercepting a sequence generated based on a preset formula according to the downlink transmission bandwidth according to the position of the virtual bandwidth corresponding to the NZP CSI-RS in the downlink transmission bandwidth; or the NZP CSI-RS sequence is obtained by intercepting the sequence generated on the basis of a preset formula according to the maximum downlink available bandwidth according to the position of the virtual bandwidth of the NZP CSI-RS at the maximum downlink available bandwidth.

Optionally, when the CSI-RS is an NZP CSI-RS, the sending module may be further configured to send, to the UE, transmission power information corresponding to the NZP CSI-RS on a virtual bandwidth corresponding to the virtual bandwidth configuration information.

In another specific application scenario, the bandwidth configuration apparatus may be configured to configure a virtual bandwidth for CSI-IM. In this application scenario, the sending module may be specifically configured to send, to the UE, virtual bandwidth configuration information corresponding to each CSI-IM in at least one CSI-IM.

In another specific application scenario, the bandwidth configuration apparatus may be configured to configure a virtual bandwidth for the CSI process. In this application scenario, the sending module may be specifically configured to send, to the UE, virtual bandwidth configuration information corresponding to each CSI process in at least one CSI process, so that the UE performs measurement or measurement feedback on the CSI according to the virtual bandwidth configuration information corresponding to each CSI process.

Optionally, the starting position of the virtual bandwidth is a starting position of any one of sub-bands divided according to a maximum downlink available bandwidth or a downlink transmission bandwidth; and/or the size of the virtual bandwidth is equal to the sum of the sizes of at least one sub-band in each sub-band divided according to the downlink maximum available bandwidth or the downlink transmission bandwidth.

In another specific application scenario, the bandwidth configuration apparatus may be configured to configure a virtual bandwidth for resource allocation. In this application scenario, the virtual bandwidth configuration information may be used to indicate a virtual bandwidth corresponding to resource allocation for the UE, where the number of virtual bandwidths corresponding to resource allocation for the UE is at least one.

Optionally, the virtual bandwidth corresponding to resource allocation for the UE and the virtual bandwidth corresponding to the CSI process are configured independently.

Optionally, the sending module may be further configured to send resource allocation information to the UE, where the resource allocation information includes index information of at least one virtual bandwidth corresponding to the resource. Optionally, the length of the resource allocation information is determined by the size of the virtual bandwidth.

Optionally, the sending module may be further configured to send scheduling information across virtual bandwidths to the UE when sending at least two pieces of virtual bandwidth configuration information to the UE, where the scheduling information includes index information used by the base station to indicate a virtual bandwidth corresponding to the scheduling information, and the index information is sent to the UE by the base station.

Optionally, in all embodiments, in a scenario, the sending module may be further configured to send, to the UE, third configuration information of rate matching and quasi co-sited assumption corresponding to the virtual bandwidth.

Optionally, in all embodiments, in another scenario, the sending module may be further configured to send fourth configuration information of the quasi co-sited hypothesis corresponding to the virtual bandwidth to the UE, where the fourth configuration information includes at least one of the following information: the number of ports of a cell-specific reference signal CRS, the subframe position information of the cell-specific reference signal CRS, the position information of a first symbol of a PDSCH, MBSFN configuration information in the virtual bandwidth and ZP CSI-RS configuration information in the virtual bandwidth.

Optionally, in all embodiments, in another scenario, the sending module may be further configured to send, to the UE, fifth configuration information assumed to be quasi co-located and corresponding to the virtual bandwidth, where the fifth configuration information includes at least one of the following information: and configuration information of a CSI-RS quasi co-sited with the DM RS and configuration information of a CRS quasi co-sited with the CSI-RS.

Optionally, the reference signal used for the quasi co-sited hypothesis and/or the rate matching is a reference signal outside the virtual bandwidth or a reference signal with a transmission bandwidth larger than the virtual bandwidth or a reference signal with a transmission bandwidth crossing the virtual bandwidth.

Optionally, in all embodiments, in yet another scenario, the sending module may be further configured to send sixth configuration information to the UE, where the sixth configuration information is used to indicate transmission resources of a physical uplink control channel PUCCH acknowledgement signal/negative acknowledgement signal ACK/NACK corresponding to the virtual bandwidth.

Example twenty

Fig. 14 is a schematic structural diagram of a UE according to a twenty embodiment of the present invention. As shown in fig. 14, the UE generally includes at least one Processor 210, such as a Central Processing Unit (CPU), a Digital Signal Processor (DSP), at least one port 220, a memory 230, and at least one communication bus 240. The communication bus 240 is used to realize connection communication between these devices. Processor 210 is used to execute executable modules, such as computer programs, stored in memory 230; optionally, the UE may include a user interface 250, the user interface 250 including, but not limited to, a display, a keyboard, and a pointing device, such as a mouse, trackball (trackball), touch pad, or touch sensitive display screen. The Memory 230 may include a Random Access Memory (RAM) and may further include a non-volatile Memory (non-volatile Memory), such as at least one disk Memory.

In some embodiments, memory 230 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof:

an operating system 232, including various system programs, for implementing various basic services and for handling hardware-based tasks;

the application module 234 includes various application programs for implementing various application services.

The application module 234 includes, but is not limited to, a receiving module 71 and a processing module 72. For specific implementation of each module in the application module 234, refer to a corresponding module in the bandwidth configuration apparatus, which is not described herein again.

Example twenty one

Fig. 15 is a schematic structural diagram of a base station according to twenty-first embodiment of the present invention. As shown in fig. 15, the base station generally includes at least one processor 410, such as a CPU, DSP, at least one port 420, memory 430, and at least one communication bus 440. The communication bus 440 is used to enable connection communication between these devices. The processor 410 is used to execute executable modules, such as computer programs, stored in the memory 430; optionally, the base station may include a user interface 450, the user interface 450 including, but not limited to, a display, a keyboard, and a pointing device, such as a mouse, trackball (trackball), touch pad, or touch sensitive display screen. The memory 430 may comprise RAM, and may also include non-volatile memory (non-volatile memory), such as at least one disk memory.

In some embodiments, memory 430 stores elements, executable modules or data structures, or a subset thereof, or an expanded set thereof:

an operating system 432, which contains various system programs for implementing various basic services and for handling hardware-based tasks;

the application module 434 includes various application programs for implementing various application services.

The application module 434 includes, but is not limited to, a determination module 91 and a sending module 92. For specific implementation of each module in the application module 434, refer to a corresponding module in the bandwidth configuration apparatus, which is not described herein again.

Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for bandwidth configuration, the method comprising:

generating configuration information of at least two virtual bandwidths, wherein the configuration information of the at least two virtual bandwidths is used for indicating the configuration of the at least two virtual bandwidths;

sending configuration information of the at least two virtual bandwidths to a User Equipment (UE), and indicating that a first virtual bandwidth of the at least two virtual bandwidths is used for sending channels and/or signals to the UE;

wherein the sending channels and/or signals to the UE comprises:

transmitting scheduling information to the UE on the first virtual bandwidth, the scheduling information including index information of a second virtual bandwidth of the at least two virtual bandwidths, and resources allocated by the scheduling information being located on the second virtual bandwidth,

transmitting channels and/or signals to the UE using the second virtual bandwidth,

each of the at least two virtual bandwidths is a downlink maximum available bandwidth or a part or all of a downlink transmission bandwidth, and the downlink maximum available bandwidth is a maximum bandwidth available for downlink transmission.

2. The method of claim 1, wherein the scheduling information comprises a bit field indicating index information of the second virtual bandwidth.

3. The method according to claim 1 or 2, wherein the length of the scheduling information is determined according to the size of the second virtual bandwidth.

4. The method according to claim 1 or 2, wherein the configuration information of the at least two virtual bandwidths is carried by higher layer signaling, and the first virtual bandwidth is indicated by physical layer signaling.

5. The method according to claim 1 or 2, wherein said indicating a first virtual bandwidth of said at least two virtual bandwidths for transmitting channels and/or signals to said UE comprises:

and sending first configuration information, wherein the first configuration information is used for indicating the first virtual bandwidth.

6. The method according to claim 1 or 2, wherein the signals and/or channels comprise at least one of:

the channel state information comprises a channel state information reference signal (CSI-RS), a Physical Downlink Control Channel (PDCCH), a Physical Downlink Shared Channel (PDSCH) and common signals, wherein the common signals comprise at least one of the following: a physical broadcast channel PBCH, a primary synchronization signal PSS, and a secondary synchronization signal SSS.

7. The method of claim 1 or 2, further comprising:

and transmitting the position information of the first symbol of the PDSCH.

8. The method of claim 1 or 2, further comprising:

and sending resource allocation information, wherein the resource allocation information is used for allocating resources on the first virtual bandwidth, and the physical resource block PRB number corresponding to the first virtual bandwidth is used as the maximum available PRB number for resource allocation of the resource allocation information.

9. The method of claim 8, wherein a length of the resource allocation information is determined by a size of the first virtual bandwidth.

10. The method according to claim 1 or 2, wherein each of the configuration information of the at least two virtual bandwidths comprises size and location information of the corresponding virtual bandwidth.

11. A bandwidth configuration device, comprising:

means for generating configuration information of at least two virtual bandwidths, the configuration information of the at least two virtual bandwidths indicating configurations of the at least two virtual bandwidths;

means for transmitting configuration information of the at least two virtual bandwidths to a user equipment, UE;

means for indicating a first virtual bandwidth of the at least two virtual bandwidths, the first virtual bandwidth being used for transmitting channels and/or signals to the UE;

wherein the transmitting channels and/or signals to the UE comprises:

means for transmitting channels and/or signals to the UE using the second virtual bandwidth,

12. The apparatus of claim 11, wherein the scheduling information comprises a bit field indicating index information of the second virtual bandwidth.

13. The apparatus according to claim 11 or 12, wherein the length of the scheduling information is determined according to the size of the second virtual bandwidth.

14. The apparatus according to claim 11 or 12, wherein the configuration information of the at least two virtual bandwidths is carried by higher layer signaling, and the first virtual bandwidth is indicated by physical layer signaling.

15. The apparatus according to claim 11 or 12, wherein the means for indicating a first virtual bandwidth of the at least two virtual bandwidths is specifically configured to:

16. The apparatus according to claim 11 or 12, wherein the signal channels and/or signals comprise at least one of:

17. The apparatus of claim 11 or 12, further comprising:

and means for transmitting location information of a first symbol of a Physical Downlink Shared Channel (PDSCH).

18. The apparatus of claim 11 or 12, further comprising: and a unit configured to send resource allocation information, where the resource allocation information is used to allocate resources on the first virtual bandwidth, and a physical resource block PRB number corresponding to the first virtual bandwidth is used as a maximum available PRB number for resource allocation by the resource allocation information.

19. The apparatus of claim 18, wherein a length of the resource allocation information is determined by a size of the first virtual bandwidth.

20. The apparatus according to claim 11 or 12, wherein each of the configuration information of the at least two virtual bandwidths comprises size and location information of the corresponding virtual bandwidth.

21. A bandwidth configuration device, comprising: a processor for calling a program stored in memory to perform the method of any one of claims 1 to 10.

22. A base station comprising an apparatus as claimed in any one of claims 11 to 21.

23. A computer-readable storage medium, characterized in that it stores a program which, when invoked by a processor, performs the method according to any one of claims 1 to 10.